Organic Chemistry; Organic Chemistry Study Guide A Format: Kit/package/shrinkwrap
Organic Chemistry; Organic Chemistry Study Guide A Format: Kit/package/shrinkwrap
8th Edition
ISBN: 9780134581064
Author: Bruice, Paula Yurkanis
Publisher: Prentice Hall
Question
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Chapter 15, Problem 78P

(a)

Interpretation Introduction

Interpretation:

To explain the reason for not obtaining the ester by dissolving by dissolving 2,4,6-trimethylbenzoic acid in an acidic solution of ethanol.

Concept introduction:

Esterificationis the process in which carboxylic acid reacts with alcohol in the presence of an acid to produce an ester.  Carboxylic acid undergoes nucleophilicsubstitution reaction.  The acid protonates the oxygen of carboxylic acid which results in increased electrophilicity of the carbonyl carbon.  The alcohol acts as a nucleophile and gets attached to the carbonyl carbon of the carboxylic acid.  Proton transfer takes place between alkoxy group and a hydroxy group.  Water molecule gets eliminated from the tetrahedral intermediate.  The proton releases from the carbonyl oxygen to form ester.

(b)

Interpretation Introduction

Interpretation:

To explain the reason methyl ester can form by dissolving 4-methylbenzoic acid in an acidic solution of alcohol.

Concept introduction:

Esterificationis the process in which carboxylic acid reacts with alcohol in the presence of an acid to produce an ester. Carboxylic acid undergoes nucleophilicsubstitution reaction. The acid protonates the oxygen of carboxylic acid which results in increased electrophilicity of the carbonyl carbon. The alcohol acts as a nucleophile and gets attached to the carbonyl carbon of the carboxylic acid. Proton transfer takes place between alkoxy group and a hydroxy group. Water molecule gets eliminated from the tetrahedral intermediate. The proton releases from the carbonyl oxygen to form ester.

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Students have asked these similar questions
A student did not obtain any ester when he added 2,4,6-trimethylbenzoic acid to an acidic solution of ethanol. Why? (Hint: Build models.) a. Would he have encountered the same problem if he had tried to synthesize the methyl ester of 4-methylbenzoic acid in the same way?
Why is the reaction of the type shown below usually done? a.To make an aldehyde or ketone less water soluble b.To make the molecule more reactive c.To protect a ketone or aldehyde carbonyl d.To increase the oxygen content e.To make the alpha hydrogens more acidic
Can you mark the part of compound 4 that are from compound 2? Also is compound 2 act as an nucleophile or electrophile when it reacted with compound 1?

Chapter 15 Solutions

Organic Chemistry; Organic Chemistry Study Guide A Format: Kit/package/shrinkwrap

Ch. 15.5 - Is the following statement true or false? If the...Ch. 15.6 - Starting with acetyl chloride, what neutral...Ch. 15.6 - Prob. 13PCh. 15.7 - Starting with methyl acetate, what neutral...Ch. 15.7 - We saw that it is necessary to use excess amine in...Ch. 15.7 - Prob. 17PCh. 15.7 - Which ester hydrolyzes more rapidly? a. methyl...Ch. 15.7 - a. state three factors that cause the uncatalyzed...Ch. 15.8 - Prob. 21PCh. 15.8 - Using the mechanism for the acid-catalyzed...Ch. 15.8 - Prob. 23PCh. 15.8 - Show the mechanism for the acid-catalyzed...Ch. 15.8 - Prob. 25PCh. 15.8 - Write the mechanism for the acid-catalyzed...Ch. 15.8 - Write the mechanism for the acid-catalyzed...Ch. 15.9 - Prob. 28PCh. 15.9 - Prob. 29PCh. 15.10 - Show how each of the following esters could he...Ch. 15.10 - Prob. 32PCh. 15.11 - Prob. 33PCh. 15.11 - Which of the following reactions leads to the...Ch. 15.12 - Prob. 35PCh. 15.12 - Prob. 36PCh. 15.13 - Prob. 37PCh. 15.14 - Prob. 38PCh. 15.14 - Prob. 39PCh. 15.15 - Prob. 40PCh. 15.15 - Which alkyl halides from the carboxylic acids...Ch. 15.16 - Prob. 43PCh. 15.16 - Prob. 44PCh. 15.16 - Prob. 45PCh. 15.17 - Prob. 46PCh. 15.18 - How could you synthesize the following compounds...Ch. 15 - Prob. 48PCh. 15 - Name the following:Ch. 15 - Prob. 50PCh. 15 - What compound are obtained from the fallowing...Ch. 15 - a. Rank the following esters in order of...Ch. 15 - Because bromocyclohexane is a secondary alkyl...Ch. 15 - a. Which compound would you expect to have a...Ch. 15 - How could you use 1H NMR spectroscopy to...Ch. 15 - Rank the following compounds in order of...Ch. 15 - Prob. 57PCh. 15 - Prob. 58PCh. 15 - Prob. 59PCh. 15 - A compound with molecular formula C5H10O2 gives...Ch. 15 - Prob. 61PCh. 15 - Prob. 62PCh. 15 - Prob. 63PCh. 15 - Prob. 64PCh. 15 - Prob. 65PCh. 15 - Prob. 66PCh. 15 - Two products, A and B, are obtained from the...Ch. 15 - Prob. 68PCh. 15 - Prob. 69PCh. 15 - Prob. 70PCh. 15 - Prob. 71PCh. 15 - Prob. 72PCh. 15 - When treated with an equivalent of methanol,...Ch. 15 - a. Identify the two products obtained from the...Ch. 15 - Prob. 75PCh. 15 - Prob. 76PCh. 15 - a. When a carboxylic acid is dissolved in...Ch. 15 - Prob. 78PCh. 15 - Identity the major and minor products of the...Ch. 15 - When a compound with molecular formula C11H14O2...Ch. 15 - Prob. 81PCh. 15 - Prob. 82PCh. 15 - Prob. 83PCh. 15 - The 1H NMR spectra for two esters with molecular...Ch. 15 - Show how the following compounds could be prepared...Ch. 15 - Prob. 86PCh. 15 - Prob. 87PCh. 15 - The intermediate shown here is formed during the...Ch. 15 - Prob. 89PCh. 15 - Propose a mechanism that accounts for the...Ch. 15 - Catalytic antibodies catalyze a reaction by...Ch. 15 - Prob. 92P
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