which-step-is-crucial-in-the-transformation-of-an-acetal-to-a-thioacetal-with-di

Question

Which step is crucial in the transformation of an acetal to a thioacetal with dilute acid?

Accepted Answer

Formation of a hemiacetal intermediate.

Answer

Reduction of carbonyl to alcohol.

Answer

Oxidation of alcohol to aldehyde.

Answer

Formation of ester intermediate.