ORGANIC CHEMISTRY-PRINT (LL)-W/WILEY
ORGANIC CHEMISTRY-PRINT (LL)-W/WILEY
4th Edition
ISBN: 9781119761105
Author: Klein
Publisher: WILEY
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Chapter 26.4, Problem 12PTS
Interpretation Introduction

Interpretation:

Mechanism for transesterification of tristearin using methanol in presence of acid catalyst need to be drawn.

Concept introduction:

Transesterification is a process in which the alcohol group present in the carboxylate of triglyceride is exchanged by another organic alcohol group.  The general scheme can be shown as,

ORGANIC CHEMISTRY-PRINT (LL)-W/WILEY, Chapter 26.4, Problem 12PTS

The steps involved in transesterification is,

  • Protononation
  • Nucleophilic attack
  • Deprotonation
  • Protonation
  • Loss of leaving group
  • Deprotonation

To draw: the mechanism of transesterification of tristearin using methanol in presence of acid catalyst.

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