A hemiacetal is formed from
A)an alcohol and a ketone.
B)a carboxylic acid and a mercaptan.
C)an alcohol and an ether.
D)an aldehyde and an alcohol.
E)an ester and an amine.

Question

Quizplus · Accepted Answer

A hemiacetal is formed from the reaction of an aldehyde with an alcohol. Option A is incorrect as it describes the formation of a hemiketal instead. Option B describes a thioester, not a hemiacetal. Option C describes the formation of an acetal, not a hemiacetal. Option E describes the formation of an imine or Schiff base, not a hemiacetal.

A Hemiacetal Is Formed from