阿摩線上測驗
70. Which of these is NOT a useful method for the synthesis of 1,3-pentadiene?
(A) 1,4-pentanediol + H2SO4 at 180o
C
(B) 2,4-dibromopentane + (CH3)3COK , (CH3)3COH at 75o
C
(C) 2,4-pentanediol + H2SO4 at 180o
C
(D) HC=CCH=CHCH3 + H2, Ni2B (P-2)
(E) 1,4-dibromopentane + CH3CH2ONa , CH3CH2OH at 75o
C
(A) 1,4-pentanediol + H2SO4 at 180o C
(B) 2,4-dibromopentane + (CH3)3COK , (CH3)3COH at 75o C
(C) 2,4-pentanediol + H2SO4 at 180o C
(D) HC=CCH=CHCH3 + H2, Ni2B (P-2)
(E) 1,4-dibromopentane + CH3CH2ONa , CH3CH2OH at 75o C
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統計： A(1), B(23), C(1), D(8), E(2) #943198
統計： A(1), B(23), C(1), D(8), E(2) #943198
