The rate of the esterification reaction betwe | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The esterification reaction follows an $S_N2$-like mechanism regarding the attack of the alcohol on the carbonyl carbon of the carboxylic acid.In

Vedclass · Accepted Answer

$-CH_3$

Vedclass · Answer

(A) The esterification reaction follows an $S_N2$-like mechanism regarding the attack of the alcohol on the carbonyl carbon of the carboxylic acid.In this reaction,the rate is inversely proportional to the steric hindrance around the oxygen atom of the alcohol $(R-OH)$.As the size of the alkyl group $(R)$ increases,the steric hindrance increases,which makes it more difficult for the nucleophile (alcohol) to attack the carbonyl carbon.The order of reactivity for alcohols in esterification is: $	ext{Methyl} > 	ext{Primary} (1^\circ) > 	ext{Secondary} (2^\circ) > 	ext{Tertiary} (3^\circ)$.Among the given options,$-CH_3$ (methyl group) has the least steric hindrance.Therefore,the reaction is fastest when $R$ is $-CH_3$.

The rate of the esterification reaction between $R-OH$ and $p-nitrobenzoic$ acid will be fastest when $R$ is:

Similar Questions

Which compounds among the following give a positive iodoform test?

Which of the following reacts with $HBr$ at a faster rate?

Ethylene may be obtained by dehydration of which of the following with concentrated $H_2SO_4$ at $160 - 170\,^{\circ}C$?

The conversion of $2-$methylpropan$-1-$ol to $2-$methylpropan$-2-$ol is:

In the given table,identify the incorrect option. The digit in the box indicates the moles of that substance.
Reactant $HIO_4$ consumed $HCO_2H$ formed $HCHO$ formed

Vedclass Test Series

Exam Paper Generator

Online Exam Module