ORGANIC CHEMISTRY (LL) W/WILEYPLUS NEXT
ORGANIC CHEMISTRY (LL) W/WILEYPLUS NEXT
12th Edition
ISBN: 9781119664635
Author: Solomons
Publisher: WILEY
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Chapter 12, Problem 20P
Interpretation Introduction

Interpretation:

The mechanism of the given reaction is to be written.

Concept introduction:

The reaction of Grignard reagents with esters yields secondary and tertiary alcohols as their products. These reactions are two-step reactions. In the first step, nucleophilic addition of carbonyl group takes place because Grignard reagent being nucleophilic uses its lone pair of electrons to form a bond with a carbon atom. This results in the formation of an alkoxide ion that remains associated with Mg2+ and X.

ORGANIC CHEMISTRY (LL) W/WILEYPLUS NEXT, Chapter 12, Problem 20P

In the second step, addition of aqueous HX causes the protonation of the alkoxide ion which leads to the formation of the alcohol and MgX2.

Carbonyl groups of cyclic esters react with 2 equivalents of Grignard reagents and followed by hydrolysis to produce tertiary alcohols.

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ORGANIC CHEMISTRY (LL) W/WILEYPLUS NEXT

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