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

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統計： A(1), B(0), C(0), D(5), E(0) #1037043

其他試題

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)(B)(C)(D)(E)

56. Which of the following reagents should be used for the following transformaton? (A) LiAlH4 then H3O+ (B) NaBH4 then H3O+ (C) [(CH3)2CHCH2]2AlH, -78o C then H2O (D) LiAlH[OC(CH3)3]3, -78o C then H2O (E) BH3‧THF then H2O

58. What is the major product of the following reaction? (A) 2,2-dimethyl-3-phenylpropanoic acid (B) 2,2-dimethyl-3-chloro-3-phenylpropanoic acid (C) 2,2-dimethyl-3-chloro-3-(2-chloro)phenylpropanoic acid (D) phetermine (E) none of the above

59. What reagents are used to dehydrate amides to nitriles? I.P2O5 IIPOCl3 IIISOCl2(A)Ⅰ (B)Ⅱ (C)Ⅲ (D)Ⅰ and Ⅱ (E) all of the above

60. What is the named reaction of the following coupling reaction? (A) Grignard reaction (B) Gilman reaction (C) Stille reaction (D) Heck reaction (E) Suzuki reaction

【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 lines you would expect in the 13C-NMR spectra of ethyl acrylate. (A) 2 (B) 3 (C) 4 (D) 5 (E) 6

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 above

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