Which of the reagents below, upon completion of reaction with a terminal alkyne, would be expected to produce a ketone as the final major organic product?

Question

Quizplus · Accepted Answer

Option I (BH3/THF followed by H2O2, NaOH), II (H2SO4, H2O) and IV (TMS) would give aldehydes as the final major organic product. Only option III (HgSO4, H2SO4, H2O) would give a ketone as the final major organic product. Therefore, the answer is option B.

Which of the Reagents Below, Upon Completion of Reaction with a Terminal