The given compound has to be assigned as E or Z configuration. Concept Introduction: Alkene: Unsaturated hydrocarbons having at least one double bond between two carbon atoms are known as alkenes . The systematic name of alkenes are written by replacing “ane” of alkane with the suffix name “ene”. Numbering of the main chain should be in such away that alkene group must get lowest possible numbers. E configuration: The geometric isomers are given E configuration if high priority groups are placed on opposite sides of the double bond. Z configuration: The geometric isomers are given Z configuration if high priority groups are placed on same sides of the double bond.

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Answer 1

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 5, Problem 5.16P

(a)

Interpretation Introduction

Interpretation:

The given compound has to be assigned as E or Z configuration.

Concept Introduction:

Alkene: Unsaturated hydrocarbons having at least one double bond between two carbon atoms are known as alkenes.

The systematic name of alkenes are written by replacing “ane” of alkane with the suffix name “ene”. Numbering of the main chain should be in such away that alkene group must get lowest possible numbers.

E configuration: The geometric isomers are given E configuration if high priority groups are placed on opposite sides of the double bond.

Z configuration: The geometric isomers are given Z configuration if high priority groups are placed on same sides of the double bond.

(b)

Interpretation Introduction

Interpretation:

The given compound has to be assigned as E or Z configuration.

Concept Introduction:

Alkene: Unsaturated hydrocarbons having at least one double bond between two carbon atoms are known as alkenes.

The systematic name of alkenes are written by replacing “ane” of alkane with the suffix name “ene”. Numbering of the main chain should be in such away that alkene group must get lowest possible numbers.

E configuration: The geometric isomers are given E configuration if high priority groups are placed on opposite sides of the double bond.

Z configuration: The geometric isomers are given Z configuration if high priority groups are placed on same sides of the double bond.

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Phenylethanol can be oxidised to phenylethanal or phenylethanoic acid, depending on the reagents used (both the alcohol and the aldehyde are of interest for their antimicrobial properties, while the acid is used to treat type II hyperammonemia): A (a) (b) (c) CoH,CH,CHO phenylethanal B C6H5CH₂CH₂OHC₂H₂CH₂CO₂H phenylethanol Suggest reagents (shown as A and B in the scheme above) that could be used to carry out the oxidation of the alcohol to the aldehyde and the acid, respectively. C6H5CH₂- Suggest two other syntheses of phenylethanoic acid, in each case indicating the starting materials and other reagents required, but not giving details of mechanism. One of your proposed syntheses must start with a compound which only contains seven carbon atoms (the acid product contains eight carbon atoms). phenylethanoic acid Phenylethanal can be converted to a hydrate in the presence of aqueous acid, though the position of equilibrium is very far to the left: H H+/H₂O OH C6H5CH₂-C-H OH Explain why…

Answer 2

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 5, Problem 5.16P

(a)

Interpretation Introduction

Interpretation:

The given compound has to be assigned as E or Z configuration.

Concept Introduction:

Alkene: Unsaturated hydrocarbons having at least one double bond between two carbon atoms are known as alkenes.

The systematic name of alkenes are written by replacing “ane” of alkane with the suffix name “ene”. Numbering of the main chain should be in such away that alkene group must get lowest possible numbers.

E configuration: The geometric isomers are given E configuration if high priority groups are placed on opposite sides of the double bond.

Z configuration: The geometric isomers are given Z configuration if high priority groups are placed on same sides of the double bond.

(b)

Interpretation Introduction

Interpretation:

The given compound has to be assigned as E or Z configuration.

Concept Introduction:

Alkene: Unsaturated hydrocarbons having at least one double bond between two carbon atoms are known as alkenes.

The systematic name of alkenes are written by replacing “ane” of alkane with the suffix name “ene”. Numbering of the main chain should be in such away that alkene group must get lowest possible numbers.

E configuration: The geometric isomers are given E configuration if high priority groups are placed on opposite sides of the double bond.

Z configuration: The geometric isomers are given Z configuration if high priority groups are placed on same sides of the double bond.

Expert Solution & Answer

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Answer 3

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 5, Problem 5.16P

(a)

Interpretation Introduction

Interpretation:

The given compound has to be assigned as E or Z configuration.

Concept Introduction:

Alkene: Unsaturated hydrocarbons having at least one double bond between two carbon atoms are known as alkenes.

The systematic name of alkenes are written by replacing “ane” of alkane with the suffix name “ene”. Numbering of the main chain should be in such away that alkene group must get lowest possible numbers.

E configuration: The geometric isomers are given E configuration if high priority groups are placed on opposite sides of the double bond.

Z configuration: The geometric isomers are given Z configuration if high priority groups are placed on same sides of the double bond.

(b)

Interpretation Introduction

Interpretation:

The given compound has to be assigned as E or Z configuration.

Concept Introduction:

Alkene: Unsaturated hydrocarbons having at least one double bond between two carbon atoms are known as alkenes.

The systematic name of alkenes are written by replacing “ane” of alkane with the suffix name “ene”. Numbering of the main chain should be in such away that alkene group must get lowest possible numbers.

E configuration: The geometric isomers are given E configuration if high priority groups are placed on opposite sides of the double bond.

Z configuration: The geometric isomers are given Z configuration if high priority groups are placed on same sides of the double bond.

Expert Solution & Answer

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Answer 4

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 5, Problem 5.16P

(a)

Interpretation Introduction