Select the best reagent expected to convert 3-heptyne to cis-3-heptene. A) NaNH₂, NH₃ B) Na, NH₃ C) H₂, Lindlar's catalyst D) Both A and C E) Both B and C

Question

Quizplus · Accepted Answer

To convert 3-heptyne to cis-3-heptene, we need to perform a semi-hydrogenation reaction. Lindlar's catalyst, made of palladium on calcium carbonate, poisoned with lead acetate, can selectively hydrogenate alkyne to alkene without further reduction to an alkane. Thus, option C is the best choice as it provides the appropriate reagent (Lindlar's catalyst) for this reaction. Option A and B are not appropriate for this specific reaction. Option D and E both include option C, which is the correct answer.

Select the Best Reagent Expected to Convert 3-Heptyne to Cis-3-Heptene