Question

Write the reaction mechanism (Two steps) of addition of alcohol to aldehyde to form Acetal.
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Answer 1

Explanation:

Mechanism for Hemiacetal and Acetal Formation

Further protonation of the OH group in the hemiacetal allows for the elimination of water to form an oxonium ion. A second alcohol nucleophile adds to the oxonium ion to produce a protonated acetal. After deprotonation, the product acetal is formed.