What is the major product of the following reaction sequence?

Question

Quizplus · Accepted Answer

The reaction sequence involves a Grignard reaction followed by protonation and hydrolysis. In the first step, the Grignard reagent CH3MgBr adds to the carbonyl group of the ketone to give alcohol II. Protonation of alcohol II followed by elimination of water gives the alkene III. Hydrolysis of alkene III gives the alcohol IV. Finally, oxidation of alcohol IV with iodine and sodium hydroxide results in the formation of the primary iodide product I. Therefore, the major product of the reaction sequence is product III.

What Is the Major Product of the Following Reaction Sequence