Carboxylic acids and derivatives (A-level only)

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Question 9
Medium

This question is about intermediates in organic reaction mechanisms.

The figure below shows a tetrahedral intermediate formed in the first step of a nucleophilic addition–elimination mechanism:

A tetrahedral intermediate formed during a nucleophilic addition-elimination reaction.

a.

Identify the IUPAC names of the two reactants that combine to form this intermediate.

[2]
b.

Describe the curly arrows and lone pairs required to show: (i) the formation of this intermediate from the two reactants. (ii) the conversion of this intermediate into the final products (excluding the final deprotonation step where the proton is lost to form the ester).

[4]

Carboxylic acids and derivatives (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Carboxylic acids and derivatives (A-level only)