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研究所、轉學考(插大)-有機化學
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109年 - 109 國立台灣大學_碩士班招生考試：有機化學(A)#90650
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7. Which of the following compounds could
not
function as a nucleophile? (A) NaOH (B) NaCN (C) NaBH
4
(D) NaCl (E) NaH
其他申論題
3. Which of the following compounds has the lowest pKa value? (A) acetone (B) phenoi (C) toluene (D) DMF (E) chloroform
#371287
4. Which of the following compounds would release the largest amount of heat per mole from hydrogenation reaction? (A) (B) (C) (D) (E)
#371288
5. Which of the following compounds has the highest reactivity in the Diels-Alder reaction with benzoquinone? (A) (B) (C) (D) (E)
#371289
6. What type of reaction mechanism would dominate the following reaction? (A)SN1 (B)SN2 (C)E1 (D)E2 (E)E1cb
#371290
8. Which of the following is the best set of reagents to carry out the transformation shown below? (A) 1) NaOH; 2) EtBr; 3) H2, Pt (B) 1) NaNH2; 2) EtBr; 3) H2, Lindlar's catalyst (C) 1) EtMgBr; 2) Na, NH3(liq) (D) 1) O3; 2) Et2S; 3) H2, Lindlar's catalyst (E) 1) NaNH2; 2) EtBr; 3) Na, NH3(liq)
#371292
9. Which of the following types of reactions could be either acid-catalyzed or base-catalyzed? (A) acetal formation (B) hemiacetal formation (C) enamine formation(D)imine formation (E) ether hydrolysis
#371293
10. What is the major final organic product of the following sequential reactions? (xs = excess) (A) (B) (C) (D) (E)
#371294
11. What is the major final organic product of the following reactions? (A) (B) (C) (D) (E)
#371295
12. What is the major final organic product of the following reactions? (A) (B) (C) (D) (E)
#371296
13. What is the major final organic product of the following reactions? (A) (B) (C) (D) (E)
#371297
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