The structure for the reactants involved in the formation of a given product by the Horner Wadsworth Emmons reaction are to be written. Concept introduction: Horner Wadsworth Emmons modification is a name reaction of carbonyl compounds in which they react with phosphonate carbanion to form (E) - alkene . The first step of this reaction is the deprotonation of a phosphonate ion to form a phosphonate carbanion.

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Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 16, Problem 48P

Interpretation Introduction

Interpretation:

The structure for the reactants involved in the formation of a given product by the Horner Wadsworth Emmons reaction are to be written.

Concept introduction:

Horner Wadsworth Emmons modification is a name reaction of carbonyl compounds in which they react with phosphonate carbanion to form (E) - alkene.

The first step of this reaction is the deprotonation of a phosphonate ion to form a phosphonate carbanion.

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CH3 Ph3P-CHCH3 H3C H3C Aldehydes and ketones are converted into alkenes by means of a direct nucleophilic addition called the Wittig reaction. In the reaction, a triphenylphosphorine ylide, also called a phosphorane, adds to an aldehyde/ketone to give a four-membered cyclic intermediate called an oxaphosphetane. The oxaphosphetane is not isolated but instead spontaneously decomposes to release triphenylphosphine oxide and an alkene. Ph3P-CHCH3 H3C The ylide is formed by reaction of triphenylphosphine, a good nucleophile, with a primary alkyl halide in an S 2 reaction, followed by deprotonation of the carbon with a strong base, such as butyllithium. The carbonyl carbon and the carbon originally bonded to the halogen become the two carbons with the double bond in the product alkene :0: CH3 Com The real value of the Wittig reaction lies in its ability to yield an alkene of predictable structure, as the C-C bond is precisely where the C=O bond was in the reactant and no isomers (other than…

Answer 2

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Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 16, Problem 48P

Interpretation Introduction

Interpretation:

The structure for the reactants involved in the formation of a given product by the Horner Wadsworth Emmons reaction are to be written.

Concept introduction:

Horner Wadsworth Emmons modification is a name reaction of carbonyl compounds in which they react with phosphonate carbanion to form (E) - alkene.

The first step of this reaction is the deprotonation of a phosphonate ion to form a phosphonate carbanion.

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Check out a sample textbook solution

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 16, Problem 48P

Interpretation Introduction

Interpretation:

The structure for the reactants involved in the formation of a given product by the Horner Wadsworth Emmons reaction are to be written.

Concept introduction:

Horner Wadsworth Emmons modification is a name reaction of carbonyl compounds in which they react with phosphonate carbanion to form (E) - alkene.

The first step of this reaction is the deprotonation of a phosphonate ion to form a phosphonate carbanion.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 16, Problem 48P

Interpretation Introduction