Two sets of reagents that might be used to prepare the given Z alkene has to be proposed. Concept Introduction: Wittig reaction: Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

Question

Friedel–Crafts alkylation of benzene with (R)-2-chlorobutane and AlCl3 affords sec-butylbenzene.a. How many stereogenic centers are present in the product?b. Would you expect the product to exhibit optical activity? Explain, with reference to the mechanism.

Answer 1

Question

Chapter 16, Problem 16.53P

(a)

Interpretation Introduction

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

(b)

Interpretation Introduction

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.

(c)

Interpretation Introduction

Interpretation:

The number of possible stereoisomers for disparlure has to be given.

Concept Introduction:

Stereoisomers and chiral:

Isomers differing only in their spatial arrangement of atoms are called as stereoisomers.

The geometric property of a molecule that cannot be superimposed on its mirror image is known as chirality. Chiral carbon is the one which is attached with four different groups or atoms.

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Friedel–Crafts alkylation of benzene with (R)-2-chlorobutane and AlCl3 affords sec-butylbenzene.a. How many stereogenic centers are present in the product?b. Would you expect the product to exhibit optical activity? Explain, with reference to the mechanism.

The endiandric acids comprise a group of unsaturated carboxylic acids isolated from a tree that grows in the rainforests of eastern Australia. The methyl esters of endiandric acids D and E have been prepared from polyene Y by a series of two successive electrocyclic reactions: thermal ring closure of the conjugated tetraene followed by ring closure of the resulting conjugated triene. (a) Draw the structures (including stereochemistry) of the methyl esters of endiandric acids D and E. (b) The methyl ester of endiandric acid E undergoes an intramolecular [4 + 2] cycloaddition to form the methyl ester of endiandric acid A. Propose a possible structure for endiandric acid A.

The endiandric acids comprise a group of unsaturated carboxylic acids isolated from a tree that grows in the rain forests of eastern Australia. The methyl esters of endiandric acids D and E have been prepared from polyene Y by a series of two successive electrocyclic reactions: thermal ring closure of the conjugated tetraene followed by ring closure of the resultingconjugated triene. (a) Draw the structures (including stereochemistry) of the methyl esters of endiandric acids D and E. (b) The methyl ester of endiandric acid E undergoes an intramolecular [4 + 2] cycloaddition to form the methyl ester of endiandric acid A. Propose a possible structure for endiandric acid A.

Answer 2

Question

Chapter 16, Problem 16.53P

(a)

Interpretation Introduction

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

(b)

Interpretation Introduction

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.

(c)

Interpretation Introduction

Interpretation:

The number of possible stereoisomers for disparlure has to be given.

Concept Introduction:

Stereoisomers and chiral:

Isomers differing only in their spatial arrangement of atoms are called as stereoisomers.

The geometric property of a molecule that cannot be superimposed on its mirror image is known as chirality. Chiral carbon is the one which is attached with four different groups or atoms.

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Answer 3

Question

Chapter 16, Problem 16.53P

(a)

Interpretation Introduction

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

(b)

Interpretation Introduction

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.

(c)

Interpretation Introduction

Interpretation:

The number of possible stereoisomers for disparlure has to be given.

Concept Introduction:

Stereoisomers and chiral:

Isomers differing only in their spatial arrangement of atoms are called as stereoisomers.

The geometric property of a molecule that cannot be superimposed on its mirror image is known as chirality. Chiral carbon is the one which is attached with four different groups or atoms.

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Answer 4

Question

Chapter 16, Problem 16.53P

(a)

Interpretation Introduction

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

(b)

Interpretation Introduction

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.

(c)

Interpretation Introduction

Interpretation:

The number of possible stereoisomers for disparlure has to be given.

Concept Introduction:

Stereoisomers and chiral:

Isomers differing only in their spatial arrangement of atoms are called as stereoisomers.

The geometric property of a molecule that cannot be superimposed on its mirror image is known as chirality. Chiral carbon is the one which is attached with four different groups or atoms.

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Answer 5

Chapter 16, Problem 16.53P

(a)

Interpretation Introduction

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

(b)

Interpretation Introduction

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.

(c)

Interpretation Introduction

Interpretation:

The number of possible stereoisomers for disparlure has to be given.

Concept Introduction:

Stereoisomers and chiral:

Isomers differing only in their spatial arrangement of atoms are called as stereoisomers.

The geometric property of a molecule that cannot be superimposed on its mirror image is known as chirality. Chiral carbon is the one which is attached with four different groups or atoms.

Answer 6

Chapter 16, Problem 16.53P

(a)

Interpretation Introduction

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

Answer 7

Chapter 16, Problem 16.53P

(a)

Interpretation Introduction

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The number of possible stereoisomers for disparlure has to be given.

Concept Introduction:

Stereoisomers and chiral:

Isomers differing only in their spatial arrangement of atoms are called as stereoisomers.

The geometric property of a molecule that cannot be superimposed on its mirror image is known as chirality. Chiral carbon is the one which is attached with four different groups or atoms.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The number of possible stereoisomers for disparlure has to be given.

Concept Introduction:

Stereoisomers and chiral:

Isomers differing only in their spatial arrangement of atoms are called as stereoisomers.

The geometric property of a molecule that cannot be superimposed on its mirror image is known as chirality. Chiral carbon is the one which is attached with four different groups or atoms.

Answer 12

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Answer 23

Ch. 16.1 - Write the IUPAC name for each compound. Specify...Ch. 16.1 - Write structural formulas for all aldehydes with...Ch. 16.1 - Write the IUPAC name for each compound.Ch. 16.5 - Prob. 16.4P Ch. 16.6 - Prob. 16.5P Ch. 16.7 - Prob. 16.6P Ch. 16.7 - Write a mechanism for the acid-catalyzed...Ch. 16.8 - Prob. 16.8P Ch. 16.8 - The given mechanism of transamination reaction is...Ch. 16.8 - The given mechanism of transamination reaction is...

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed. Concept Introduction: Wittig reaction: Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

Solution Summary: The author proposes two sets of reagents that might be used to prepare the given Z alkene, and the number of possible stereoisomers for disparlure.

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.

Chapter 16 Solutions

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed. Concept Introduction: Wittig reaction: Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

Solution Summary: The author proposes two sets of reagents that might be used to prepare the given Z alkene, and the number of possible stereoisomers for disparlure.

Interpretation: Two sets of reagents that might be used to prepare the given Z alkene has to be proposed. Concept Introduction: Wittig reaction: Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

Interpretation: The conversion method of Z alkene into disparlure has to be given. Concept Introduction: Epoxidation reaction: Alkenes reacts with peracids and forms epoxide.

Chapter 16 Solutions

Interpretation:

Two sets of reagents that might be used to prepare the given Z alkene has to be proposed.

Concept Introduction:

Wittig reaction:

Formation of an alkene by the reaction of carbonyl compounds with phosphorus ylide is known as Wittig reaction.

Interpretation:

The conversion method of Z alkene into disparlure has to be given.

Concept Introduction:

Epoxidation reaction:

Alkenes reacts with peracids and forms epoxide.