7. When pyridine is treated with a mixture of nitric and sulfuric acids, the major product is _____. (A) 2-nitropyridine (B) 3-nitropyridine (C) 4-nitropyridine (D) both A and C

7. When pyridine is treated with a mixture of nitric and sulfuric acids, the major product is _____.
(A) 2-nitropyridine
(B) 3-nitropyridine
(C) 4-nitropyridine
(D) both A and C

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統計： A(2), B(7), C(3), D(2), E(0) #3093898

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B1 · 2023/11/05

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15. Which series of reactions described below, if any, will result in the formation of 2-methylpentan-3- one starting with 1-propanol? (A) 1. (CH3)2CHMgBr； 2. dilute H3O+； 3.PCC. (B) 1. PCC； 2. (CH3)2CHLi； 3. dilute H3O+； 4. Na2Cr2O7/H2SO4. (C) 1. Na2Cr2O7/H2SO4；2.2(CH3)2CHMgBr, 3. dilute H3O+；4.LiAIH4. (D) 1. Na2Cr2O7/H2SO4； 2. SOCI2； 3.2(CH3)2CHMgBr；4.H3O+. (E) none of the above

7. When pyridine is treated with a mixture of nitric and sulfuric acids, the major product is _____.
(A) 2-nitropyridine
(B) 3-nitropyridine
(C) 4-nitropyridine
(D) both A and C

詳解 (共 1 筆)

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