The reaction of alcohols with thionyl chloride () in the presence of pyridine is preferred over for the preparation of alkyl chlorides because:

Question

The reaction of alcohols with thionyl chloride ($SOCl_2$) in the presence of pyridine is preferred over $PCl_5$ for the preparation of alkyl chlorides because:

Prashant Kotian · Accepted Answer

Correct answer: B. The reaction with yields and as byproducts. Since both are gases, they escape from the reaction mixture, leaving behind a highly pure alkyl chloride product without the need for complex separation.

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