Chapter 21, Problem 21.24P

Interpretation Introduction

Interpretation:

Detailed mechanism for the formation of each product is to be proposed.

Concept introduction:

Caisen condensation can be self Claisen condensation or cross Claisen condensation.

In self condensation, two precursors are identical while in crossed, they are different. Products for both the reaction are β keto esters. Same reactants can undergo reaction in four different ways, producing four different β keto esters.