Question

Esterification of acid chloride with ethanol is usually carried out in the presence of pyridine. The function of pyridine is :

• A. to remove $HCl$ formed in the reaction
• B. to react with acid chloride to form an acylpyridinium ion
• C. both (a) and (b)
• D. as a catalyst

Answer 1

The correct option is C both (a) and (b)

During esterification of acid chloride with ethanol, function of pyridine is to remove $HCl$ formed in the reaction and also to react with acid chloride to form an acylpyridinium ion.