問題詳情

41. What is the best reagent for the following transformation? 

 
(A) 1. PhMgBr, ether 2. H3O

 
(B) PhCH2MgBr, ether 2. H3O

 
(C) Ph3P=CHPh, THF 
(D) (PhCH2)2CuLi 
(E) All of the above work well.

參考答案

答案：C
難度：適中0.461538
統計：A(0),B(0),C(6),D(4),E(0)