The given compounds are not participating as a diene in a Diels-Alder reaction should be explained. Concept introduction: The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes . Based on the proximity of C = C bonds in dienes, they are classified into three. Cumulated dienes: the C = C bonds are located adjacent carbons. Conjugated dienes : the C = C bonds or C = C and C = O are separated by one σ-bond. Isolated dienes: the C = C bonds are separated by two or more σ-bonds. Diels-Alder reaction is a [ 4+2 ] cycloaddition reaction, in which a π-system ( conjugated ) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene . Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile. The dienes shows conformations due to free rotation of C − C bond. The conformations are s-cis and s-trans . Example, the conformations for 1,3-butadiene are, Steric hindrance on the dienes prevents the s-cis conformations. To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

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Answer 1

Question

Chapter 16, Problem 39PP

(a)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(b)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(c)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(d)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

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For each reaction below, decide if the first stable organic product that forms in solution will create a new CC bond, and check the appropriate box. Next, for each reaction to which you answered "Yes" to in the table, draw this product in the drawing area below. Note for advanced students: for this problem, don't worry if you think this product will continue to react under the current conditions - just focus on the first stable product you expect to form in solution. ? NH2 MgBr Will the first product that forms in this reaction create a new CC bond? ○ Yes ○ No MgBr ? Will the first product that forms in this reaction create a new CC bond? O Yes O No Click and drag to start drawing a structure. :☐ G x c olo Ar HE

Predicting As the lead product manager at OrganometALEKS Industries, you are trying to decide if the following reaction will make a molecule with a new C - C bond as its major product: H₂N O H 1. ? 2. H3O+ If this reaction will work, draw the major organic product or products you would expect in the drawing area below. If there's more than one major product, you can draw them in any arrangement you like. Be sure you use wedge and dash bonds if necessary, for example to distinguish between major products with different stereochemistry. 0 If the major products of this reaction won't have a new CC bond, just check the box under the drawing area and leave it blank. فا Explanation Check Click and drag to start drawing a structure.

Highlight the chirality (or stereogenic) center(s) in the given compound. A compound may have one or more stereogenic centers. OH OH OH OH OH OH

Answer 2

Question

Chapter 16, Problem 39PP

(a)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(b)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(c)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(d)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 16, Problem 39PP

(a)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(b)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(c)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(d)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 16, Problem 39PP

(a)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(b)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(c)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(d)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 16, Problem 39PP

(a)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(b)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(c)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

(d)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 6

Chapter 16, Problem 39PP

(a)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 7

Chapter 16, Problem 39PP

(a)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 12

(d)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 13

(d)

Interpretation Introduction

Interpretation:

The given compounds are not participating as a diene in a Diels-Alder reaction should be explained.

Concept introduction:

The compounds having two C = C π bonds or C = C bond with C = O bonds are called dienes.

Based on the proximity of C = C bonds in dienes, they are classified into three.

Cumulated dienes: the C = C bonds are located adjacent carbons.

Conjugated dienes: the C = C bonds or C = C and C = O are separated by one σ-bond.

Isolated dienes: the C = C bonds are separated by two or more σ-bonds.

Diels-Alder reaction is a [4+2] cycloaddition reaction, in which a π-system (conjugated) having four atoms (conjugated diene) and a π-system having two atoms (dienophile) are undergoing in cycloaddition reaction and producing a substituted cyclohexene.

Only the diene having s-cis conformation will undergo Diels-Alder reaction with dienophile.

The dienes shows conformations due to free rotation of C−C bond. The conformations are s-cis and s-trans.

Example, the conformations for 1,3-butadiene are,

Steric hindrance on the dienes prevents the s-cis conformations.

To explain: the given compounds are not participating as a diene in a Diels-Alder reaction.

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 16.1 - Prob. 1CC Ch. 16.2 - Prob. 2CC Ch. 16.2 - Prob. 3CC Ch. 16.2 - Prob. 4CC Ch. 16.3 - Draw an energy diagram showing the relative energy...Ch. 16.4 - Prob. 1LTS Ch. 16.4 - Prob. 6PTS Ch. 16.4 - Prob. 7PTS Ch. 16.5 - Prob. 2LTS Ch. 16.5 - Predict the products for each of the following...

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