47. Which is the major product of the following reaction? 
(A) I
(B) II
(C) III
(D) IV
(E) V

48. Which is the major product of the following reaction? (A) I (B) II (C) III (D) IV (E) V

49. Which of the following synthetic procedures would be employed most effectively to transform ethanol into ethyl propyl ether? (A) 1. Ethanol, HBr 2. Mg, ether, then H3O 3. NaH, then CH3CH2Br (B) 1. Ethanol, HBr 2. Mg, ether, then HCHO, then H3O 3. NaH, then CH3CH2Br (C) 1. Ethanol 2. CH3CH2CH2OH 3. H2SO4, 140 °C (D) 1. Ethanol, NaH 2. HCHO, then H3O 3. HBr, then Mg, ether, then CH3CH2CH2Br (E) 1. Ethanol 2. H2SO4, 180 °C 3. CH3CH2CH2Br

50. Which is the major product of the following reaction? (A) I (B) II (C) III (D) IV (E) V

51. Which is the major product of the following reaction? (A) I (B) II (C) III (D) IV (E) V

52. What is the major product of the following reaction? (A) I (B) II (C) III (D) IV (E) V

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

54. Which reagent is most suitable for the following transformation? (A) CuF (B) F-TEDA-BF4 (C) AgSbF6 (D) HBF4 (E) n-Bu4NF

55. What is the major product of the following reaction? (A) (B) (C) (D) (E) None of the above

56. What is the major product of the following reaction? (A) I (B) II (C) III (D) IV (E) V

57. What is the major product of the following reaction? (A) (B) (C) (D) (E) None of the above

105年 - 105 學士後西醫：有機化學#78642

104年 - 104 學士後西醫：有機化學#27032

103年 - 103 學士後西醫：有機化學#27037

102年 - 102 學士後西醫：有機化學#27324

101年 - 101 學士後西醫：有機化學#27197

100年 - 100 學士後西醫：有機化學#35480

98年 - 098 學士後西醫：有機化學#37156

96年 - 96學士後西醫-有機化學 #37201