Organic Chemistry
Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Chapter 16, Problem 16.25P
Interpretation Introduction

Interpretation:

Two sets of reagents that might be combined in a Wittig reaction to give 1-Phenyl-1,3-pentadiene has to be suggested.

Concept introduction:

The functional group in the aldehydes and Ketones are carbonyl group.

An Alkene containing a halogen group in the allylic position is called as Allylic halides. Allylic position is the position next to C=C bond.

Compounds with two double bonds are known as dienes.

Wittig reaction is a reaction in which a nucleophilic elimination occurs after nucleophilic addition reaction. In this reaction an aldehyde or ketone reacts with a triphenyl phosphonium ylide (Wittig reagent) to give an alkene and triphenylphosphine oxide.

The reaction can be represented as shown below,

Organic Chemistry, Chapter 16, Problem 16.25P , additional homework tip  1

Mechanism:

Organic Chemistry, Chapter 16, Problem 16.25P , additional homework tip  2

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Chapter 16 Solutions

Organic Chemistry

Ch. 16.8 - The given mechanism of transamination reaction is...Ch. 16.8 - Prob. DQCh. 16.8 - Prob. EQCh. 16.8 - The given mechanism of transamination reaction is...Ch. 16.9 - Predict the position of the following equilibrium.Ch. 16.9 - Draw a structural formula for the keto form of...Ch. 16.10 - Prob. 16.11PCh. 16.11 - What aldehyde or ketone gives these alcohols upon...Ch. 16.11 - Prob. 16.13PCh. 16 - Prob. 16.14PCh. 16 - Prob. 16.15PCh. 16 - The infrared spectrum of compound A, C6H12O, shows...Ch. 16 - Following are 1H-NMR spectra for compounds B...Ch. 16 - Draw structural formulas for the product formed by...Ch. 16 - Suggest a synthesis for the following alcohols...Ch. 16 - Show how to synthesize the following alcohol using...Ch. 16 - 1-Phenyl-2-butanol is used in perfumery. Show how...Ch. 16 - Prob. 16.22PCh. 16 - Draw structural formulas for (1) the...Ch. 16 - Show how to bring about the following conversions...Ch. 16 - Prob. 16.25PCh. 16 - Wittig reactions with the following -chloroethers...Ch. 16 - Prob. 16.27PCh. 16 - Prob. 16.28PCh. 16 - 5-Hydroxyhexanal forms a six-membered cyclic...Ch. 16 - Prob. 16.30PCh. 16 - Prob. 16.31PCh. 16 - Propose a mechanism to account for the formation...Ch. 16 - Prob. 16.33PCh. 16 - Prob. 16.34PCh. 16 - Show how to bring about the following conversion.Ch. 16 - A primary or secondary alcohol can be protected by...Ch. 16 - Prob. 16.37PCh. 16 - Prob. 16.38PCh. 16 - Prob. 16.39PCh. 16 - Prob. 16.40PCh. 16 - The following molecule belongs to a class of...Ch. 16 - When cis-2-decalone is dissolved in ether...Ch. 16 - Prob. 16.43PCh. 16 - Prob. 16.44PCh. 16 - The following bicyclic ketone has two -carbons and...Ch. 16 - Propose a mechanism for this reaction.Ch. 16 - The base-promoted rearrangement of an -haloketone...Ch. 16 - If the Favorskii rearrangement of...Ch. 16 - (R)-Pulegone, readily available from pennyroyal...Ch. 16 - (R)-Pulegone is converted to (R)-citronellic acid...Ch. 16 - Starting with cyclohexanone, show how to prepare...Ch. 16 - Show how to convert cyclopentanone to these...Ch. 16 - Prob. 16.53PCh. 16 - Prob. 16.54PCh. 16 - Prob. 16.55PCh. 16 - Following is the structural formula of Surfynol, a...Ch. 16 - Prob. 16.57PCh. 16 - Propose a mechanism for this isomerization.Ch. 16 - Starting with acetylene and 1-bromobutane as the...Ch. 16 - Prob. 16.60PCh. 16 - Prob. 16.61PCh. 16 - Prob. 16.62PCh. 16 - Prob. 16.63PCh. 16 - Prob. 16.64PCh. 16 - All rearrangements we have discussed so far have...Ch. 16 - In dilute aqueous base, (R)-glyceraldehyde is...Ch. 16 - Treatment of -D-glucose with methanol in the...Ch. 16 - Treating a Grignard reagent with carbon dioxide...Ch. 16 - Prob. 16.69PCh. 16 - Prob. 16.70PCh. 16 - Prob. 16.71PCh. 16 - Prob. 16.72PCh. 16 - Write the products of the following sequences of...Ch. 16 - Using your reaction roadmaps as a guide, show how...Ch. 16 - Using your reaction roadmaps as a guide, show how...Ch. 16 - Using your reaction roadmaps as a guide, show how...Ch. 16 - Using your reaction roadmaps as a guide, show how...Ch. 16 - Prob. 16.78PCh. 16 - Prob. 16.79PCh. 16 - Prob. 16.80PCh. 16 - Prob. 16.81P
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