20.
的最佳合成方法是
(A) 
(B) 
(C) 
(D)
答案:登入後查看
統計: A(43), B(52), C(401), D(35), E(0) #2363099
統計: A(43), B(52), C(401), D(35), E(0) #2363099
詳解 (共 6 筆)
#5596978
32
0
#5405079
(A)和硫酸反應會先產生烯類,再做硼氫化氧化產物有多種,氘不會只接在一種二級碳上
(B)和硫酸反應會先產生烯類,再做還原,都接上氘
(C)PBr3可把OH替換成好的離去基Br,再和Mg製造有機金屬攻擊D2O最後接上D
(D)PBr3可把OH替換成好的離去基Br,再和鹼反應走E2產生烯類
5
0
#7219124
9. Which of the following reaction sequences would convert 2-butanol into 2-deuterobutane?
(A) 1. H2SO4, heat 2. BD3 in THF, then H2O2, NaOH
(B) 1. H2SO4, heat 2. D2, Pd/C
(C) 1. PBr3 2. Mg/ether, then D2O
(D) 1. PBr3 2. NaOD, then D2O
(E) 1. PBr3 2. NaD in hexane
答案:C
ㅤㅤ
27. 下列選項中的反應試劑何者最適合用來進行以下的反應 ?


(A) KOH followed by BD3/THF
(B) KOH followed by NaBH4
(C) Mg/ether followed by D2O
(D) NaNH2 followed by D2/Pd
答案:C
ㅤㅤ
42. 請選出下列反應之產物。ㅤㅤ

(A) 

(B) 

(C) 

(D) 

答案:B
0
0