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100年 - 100 學士後西醫:有機化學#35480
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47. Which of the following will be the kinetically favored product from the depicted reaction ?
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統計:
A(0), B(1), C(7), D(17), E(0) #1026932
私人筆記 (共 2 筆)
白白
2025/09/02
私人筆記#7420620
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黃美滿.邀請碼205382
2024/07/10
私人筆記#6218709
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Trans-decalin沒有1,3 a...
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其他試題
43. Which of the following reactions will not yield a ketone product?
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44. Which of the following is a nonreducing sugar (does not react with Tollens' reagent)?
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45. Formulas for four ethyl ethers are drawn below.Which two ethers are cleaved by aqueous acid much more easily than the other two? (A) I and II (B) II and III (C) III and IV (D) I and IV (E) III and IV
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46. The formula of brevicomin, a pheremone of the western pine beetle, is shown below. What open chain ketodiol would close to this bicyclic acetal? (ignore stereoisomer issues) (A) 7,8-dihydroxynonan-3-one (B) 6,7-dihydroxynonan-3-one (C) 7,8-dihydroxynonan-2-one (D) 6,7-dihydroxynonan-2-one (E) 6,7-dihydroxynonan-4-one
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48. Which of the following alcohols undergoes dehydration upon heating with concentrated H2SO4 without carbocation rearrangement? (A) 2-methylhexan-3-ol (B) 3-methylpentan-3-ol (C) 3,3-dimethylpentan-2-ol (D) 2-methyl-2-phenylpropan-1-ol (E) both A and B
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49. Choose the reaction, or reaction sequence, that best accomplishes the preparation of 2-methylcyclohexanol.
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50. Alkoxymercuration followed by sodium borohydride reduction would be used to produce (A) alcohol from an alkene (B) aldehyde from alcohol (C) acid from an alkyne (D) ether from an alkene (E) alkene from an aryl halide
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51. What is the structure for A?
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52. Which reagent(s) can be used to convert bromobenzene to benzoic acid? (A) 1. NaCN; 2. NaOH, H2O (B) KMnO4 (C) 1. Mg; 2. CO2, then H3O+ (D) CrO3, HCl (E) 1. CH3Br; 2. CrO3, H2SO4.
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53. In addition to 2-butanone, a second product is formed in the following acid-base reaction. Choose the structure for this second product.
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