問題詳情

I. Choose one correct answer for the following questions【單選題】每題 1 分,共計 60 分,答錯 1 題倒扣 0.25 分,倒扣至本大題零分為止,未作答,不給分亦不扣分。
 1. What is the carbon nucleophile which attacks molecular bromine in the acid-catalyzed α-bromination of a ketone?
(A) an enol
(B) a Grignard reagent
(C) an acetylide
(D) a carbocation
(E) an enolate

參考答案

答案:A
難度:困難0.333333
統計:A(1),B(0),C(0),D(0),E(1)

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