問題詳情

23. Which of the following Wittig reagents would be useful for converting R2C=O into R2CHCHO after hydrolysis?
(A) Ph3P=CHOCH3
(B) Ph3P=CHCH3
(C) Ph3P=Cl2
(D) Ph3P=CHCH=CH2
(E) Ph3P=C(OCH3)2

參考答案

答案：A
難度：適中0.416667
統計：A(5),B(4),C(0),D(0),E(0)