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76. Which of the following is most reactive toward nucleophilic aromatic substitution?
(A)
(B)
(C)
(D)
(E)

答案：登入後查看
統計： A(0), B(2), C(2), D(2), E(1) #2347852

其他試題

72. What is the major organic product of the following reaction? (A) (B) (C) (D) (E) none of the above

73. What reagent(s) would you use to accomplish the following conversion? (A) CH3Br, H3O+ (B) CH3MgBr, H3O+ (C) (CH3)2CuLi, H3O+ (D) CH3Br, LiAlH4, H3O+ (E) CH3MgBr, LiAlH4, H3O+

74. What carbonyl compound and what phosphonium ylide are required for the synthesis of the following alkene? (A) only (1) (B) only (2) (C) only (3) (D) (2) and (3) (E) (1),(2),and (3).

75. What is the major organic product of the following reaction? (A) (B) (C) (D) (E)

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79. Deduce the identity of the compound from the data provide. C5H8O4: IR(cm-1):2800-3300 (broad), 2950, 1740 13C NMR (δ, splitting): 17.3 (quartet), 44.3 (singlet), 210.5 (singlet). (A) HO2CC(CH3)2CO2H. (B) CH3O2CCH2CO2CH3. (C) HO2CCCH2CH2CH2CO2H. (D) CH3O2CCH2CH2CO2H. (E) CH3O2CCO2CH2CH3.

80. What is the major organic product of the following reaction? (A) (B) (C) (D) (E)none of the above.

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