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प्रश्न
Explain the mechanism of esterification
उत्तर
Carboxylic acid reacts with alcohols in the presence of mineral acid as a catalyst and forms esters. This reaction is called esterification.
Consider the following reaction for the preparation of ethyl acetate from ethanoic acid.
The mechanism involved in the above esterification reaction can be explained as follows:
Protonation of the –OH group of the acid enhances the nucleophilic attack by alcohol to give the ester.
Step 1: Protonation of carboxylic acid
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संबंधित प्रश्न
Name the reagents used in the following reactions:
Predict the products of the following reactions:
Draw the structures of major monohalo products in each of the following reactions :
Give plausible explanation for the following:
During the preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, the water or the ester should be removed as soon as it is formed.
Complete the synthesis by giving missing starting material, reagent or product.
Write chemical equation for the following :
Fischer esterificatione
Which of the following carboxylic acid can be esterified most readily?
Carboxylic acid reacts with diazomethane to yield:
Acid anhydride on reaction with primary amine gives compound having a functional group ______.
Write the equations for the following reaction:
Salicylic acid is treated with acetic anhydride in the presence of conc H2SO4
Given below are two statements:
Statement I: The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.
Statement II: Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reactions.
Choose the most appropriate options.
In the given reaction,
The number of n electrons present in the product 'P' is ______.
A reaction of ethyl amine and acetic anhydride leads to the formation of ______.
