Original sentence: In contrast, the formation of an acyl chloride, and the reaction of this acyl chloride to give esters or amines are rapid and irreversible, often making it preferable to synthesize alcohols and amines in this two-step process
Edited sentence: In contrast, both reactions involved in preparing esters and amides (acyl chloride formation, and coupling with the alcohol or amine) are fast and irreversible.This makes the two-step route often preferable to the single step reaction with the carboxylic acid