Select the structure of the major product formed from the following reaction.

Name: Select the structure of the major product formed from the following reaction.
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Question

Quizplus · Accepted Answer

The reaction involves an intramolecular aldol condensation where the carbonyl group of the ketone attacks the alpha-carbon of the aldehyde. This forms a six-membered ring with an oxygen bridge. The product structure in choice III is the only one that satisfies this criteria.

Select the Structure of the Major Product Formed from the Following