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.

Question

Want to see the full answer?

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.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Identify the starting material in the following reaction. Click the "draw structure" button to launch the drawing utility. draw structure ... [1] 0 3 C10H18 [2] CH3SCH3 H

In an equilibrium mixture of the formation of ammonia from nitrogen and hydrogen, it is found that PNH3 = 0.147 atm, PN2 = 1.41 atm and Pн2 = 6.00 atm. Evaluate Kp and Kc at 500 °C. 2 NH3 (g) N2 (g) + 3 H₂ (g) K₂ = (PN2)(PH2)³ = (1.41) (6.00)³ = 1.41 x 104

What alkene or alkyne yields the following products after oxidative cleavage with ozone? Click the "draw structure" button to launch the drawing utility. and two equivalents of CH2=O draw structure ...

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

Want to see the full answer?

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

Want to see the full answer?

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

Want to see the full answer?

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

Want to see the full answer?

Check out a sample textbook solution

See solution

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 - Prob. 5CC Ch. 16.4 - Prob. 1LTS Ch. 16.4 - Prob. 6PTS Ch. 16.4 - Prob. 7PTS Ch. 16.4 - Prob. 8ATS Ch. 16.5 - Prob. 2LTS

Want to see the full answer?

Chapter 16 Solutions