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Wittig reaction
科目:學士後◆化學|題數:14
寬識(已上榜、感謝阿摩與前輩)
建立於 2025年08月04日
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29. Which are ylides? (A) only I (B) only II (C) I and II (D) II and III (E) III and IV
9. 當我們稱一種化合物為ylide,意思是_________。 (A) carbanion bound to a negatively charged heteroatom (B) carbocati...
3. Wittig reaction 會產生下列何者? (A) alkene (B) ketoester (C) carboxylic acid (D) alcohol
74. What carbonyl compound and what phosphonium ylide are required for the synthesis of the following alkene? (A) only (...
43. What is the major organic product of the following sequence of reactions?
46. 欲藉由 Wittig reaction 得到 1-phenyl-1,3-butadiene 可利用下列哪一選項內的化合物 組合?
41. What is the best reagent for the following transformation? (A) 1. PhMgBr, ether 2. H3O (B) PhCH2MgBr, ether 2. H3O ...
複選題59. Provide the reactants necessary to prepare the following alkene using the Wittig reaction. (A) ethanal an...