Q-21-21-7P

Question


How might you prepare the following esters from the corresponding acids?



Step-by-Step Solution

Verified
Answer

a) The reaction of acetic acid + 1-butanol forms the given ester.

b) The reaction of butanoic acid+methanol forma the given ester.

c) The reaction of cyclopentane carboxylic acid and 2-propanol forms the given ester.

1Fischer Esterification reaction

The chemical reaction of alcohol and carboxylic acid leads to the formation of a new class of compound called ester. This reaction takes place in the presence of acid catalyst.

 

 

2Subpart (a)


The preparation can be done by treating acetic acid with 1-butanol. The main approach for the preparation of ester from a carboxylic acid is Fischer esterification. The reagents are 1-butanol and acetic acid.



3Subpart (b)


These steps are reversible and the reaction has one equilibrium constant. The main approach for the preparation of ester from a carboxylic acid is Fischer esterification. The reagents are methanol and butanoic acid.



4Subpart (c)


These steps are reversible and the reaction has one equilibrium constant. The equation can be driven using a good choice of reaction conditions. The reaction of Fischer esterification will offer a synthetic route for the ester formation. The reactants required are cyclopentane carboxylic acid and 2-propanol.