Draw a mechanism for this reaction. 2

Question:

Draw a mechanism for this reaction.

Acid catalyzed cyclization of diol:

A diol will undergo acid catalyzed cyclization reaction to afford a cyclic ether. For example, butane-1,4-diol will undergo acid catalyzed cyclization reaction to afford tetrahydrofuran.

Answer and Explanation:

The mechanism of the reaction is given below.

Step 1: One of the hydroxyl groups gets protonated to turn it into a good leaving group.

Step 2:...

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