未分類

53. What product will be formed by the following reaction conditions?

54. Which one is the kinetic product of the following reaction?

55. Which of the following reagents should be used to convert methyl hexanoate to hexanal?(A) LiAlH4

56. Which of the following reagents should be used for the following transformaton?  (A) LiAlH4 then

57. What is the major product of the following reaction?

58. What is the major product of the following reaction?  (A) 2,2-dimethyl-3-phenylpropanoic acid (B

59. What reagents are used to dehydrate amides to nitriles? I.P2O5  IIPOCl3   IIISOCl2(A)Ⅰ (B)Ⅱ (C)Ⅲ

60. What is the named reaction of the following coupling reaction?  (A) Grignard reaction (B) Gilman

【單選題】每題 2 分，共計 40 分，答錯 1 題倒扣 0.5 分，倒扣至本大題零分為止，未作答，不給分亦不扣分。61. Predict the number of carbon resonance

62. What organic product would you expect from the following reaction?

63. Which of the following reactions is called Perkin condensation?(A) (B) (C) (D) (E) none of the a

64. What is the major product for the following reaction?

65. What is the major product of the following reaction?

66. Provide the final product of the following reaction.

67. What is the final product of the following sequential reactions?

68. What is the major product of the following reaction sequence?

69. What is the product of the following reaction sequence?

70. Which of the following compounds will not undergo a ring-opening reaction under thermal conditio

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

72. Provide the final product of the following reaction.

73. Provide the final product of the following reaction.

74. Provide the final product of the following reaction.

75. What is the major product of the following reaction?

76. What is the major product of the following reaction?

77. Provide the major organic product of the reaction shown below.(A) (B) (C) (D) (E)

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