問題詳情

70. Which of these is NOT a useful method for the synthesis of 1,3-pentadiene?
(A) 1,4-pentanediol + H2SO4 at 180oC 
(B) 2,4-dibromopentane + (CH3)3COK , (CH3)3COH at 75oC 
(C) 2,4-pentanediol + H2SO4 at 180oC 
(D) HC=CCH=CHCH3 + H2, Ni2B (P-2)
(E) 1,4-dibromopentane + CH3CH2ONa , CH3CH2OH at 75oC

參考答案

答案:B
難度:簡單0.875
統計:A(0),B(7),C(0),D(0),E(0)

內容推薦

內容推薦