forbid
发表于 2025-3-25 04:12:49
Catalysts, Ligands and Reagents,Although several transition metal catalysts are commercially available, one may prefer to make them oneself if larger quantities are needed. The procedures described in this chapter are taken from the literature, but in some of them modifications have been introduced in order to facilitate their performance.
事与愿违
发表于 2025-3-25 08:54:54
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故意
发表于 2025-3-25 13:27:32
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BUDGE
发表于 2025-3-25 19:49:58
Copper(I)-Halide-Catalyzed Oxidative Coupling of Acetylenes,More than a century ago Glaser described the oxidation with air of phenylacetylene to diphenylbutadiyne . The original procedure using preformed copper acetylide has evolved to a number of variants in which the acetylene is oxidized with oxygen or air in the presence of . amounts of copper (I)halide.
改进
发表于 2025-3-25 22:44:57
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词汇记忆方法
发表于 2025-3-26 02:15:56
Procedures for the Preparation of Halogen Compounds,repared by well-established methods. Several experimental procedures can be found in B.S. Furniss, A.J. Hannaford, P.W.G. Smith, A.R. Tatchell, “VogeP’s Textbook of Practical Organic Chemistry”, 5. ed., Longman Scientific & Technical, London (1991).
歪曲道理
发表于 2025-3-26 07:40:28
Couplings of Acetylenes with ,,-Halides,ouplings with copper acetylides ). Couplings of free acetylenes with iodoheteroaromates in the presence of potassium carbonate and catalytic amounts of metallic copper or Cui have been reported by a research group in Novosibirsk .
insomnia
发表于 2025-3-26 11:25:23
hecked the experimental procedures illustrating the catalytic use of copper, nickel, and palladium compounds in organic synthesis. All procedures are on a preparative scale, make economic use of solvents and catalysts, avoid toxic substances and have high yields.978-3-540-65550-3978-3-642-60328-0
震惊
发表于 2025-3-26 15:55:05
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DEMUR
发表于 2025-3-26 17:26:18
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