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101年 - 101 學士後西醫:有機化學#27197
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65. What is the major product of the following four components’ reaction?
答案:
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統計:
A(10), B(2), C(2), D(3), E(0) #941889
詳解 (共 1 筆)
大家加油! 邀請碼228480
B1 · 2025/12/08
#7209893
這是 Hantzsch 吡啶合成(Ha...
(共 2218 字,隱藏中)
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私人筆記 (共 1 筆)
黑面企鵝(一年上榜!)
2024/03/22
私人筆記#5836484
未解鎖
此題考的是hantzsch ester...
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【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. List the following esters in order of decreasing reactivity in the first step of a nucleophilic acyl substitution reaction: (A) 2>3>1>4 (B) 4>1>3>2 (C) 2>4>1>3 (D) 3>1>4>2 (E) 4>2>1>3
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62. The chiral centers in the structure of penicillin V are indicated ( C-2, C-5, and C-6). In the following assignments which one is wrong? (A) 2S (B) 5R (C) 6R (D) 6S (E) None of the above.
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63. What is the structure of the final product?
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64. What is the structure of the final product?
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66. In the following reaction, which compound is the major product?
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67. What is the major product of the following reaction? (A)(B)(C)(D)(E) None of the above.
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68. In the following reaction, which compound is the major product?
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69. What is the final product of the following sequential reactions?
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70. Consider the reaction given below, which of the following is not applicable to this reaction? (A) An example of cycloaddition reaction (B) Bond formation is suprafacial (C) Bond formation is antarafacial (D) Prefer under thermal conditions (E) All of these apply to this reaction.
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71. In the following reaction, which compound the major product?
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