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【答案】应助回帖
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foster·杰: 金币+10, 翻译EPI+1, ★有帮助, 早已过期了！哭啊 2014-01-02 23:09:04
Olefin metathesis reactions refer to a process of obtaining new olefin and new carbene through alkene double bond breakage and recombination under the catalytic reactions of metal carbene composition and olefin. At present, various basic types of Olefin metathesis reactions have been studied and widely used in Pharmaceutical and polymer industries. Olefin metathesis reactions involve in recombination of alkene double bond in the presence of metal catalysts, and the effective catalysts make the synthesis process more convenient and higher productive efficiency. Compared with other reactions, the by-products and the discharge of wastes are rare, which is more environmental protected. Currently, the type of metathesis reactions and catalysts have been studied. Metathesis catalysts are the core issues of whether metathesis reactions can be achieved. The research course of olefin metathesis reactions, from discovery to wide use, is actually the process of catalysts development and improvement. Therefore, the design and improvement of metathesis catalysts are extremely important. Olefin metathesis reactions have properties of mild reaction conditions, higher productivity and excellent functional adaptation, thus having very broad application space, which has now been widely used in many fields such as total synthesis of natural products, properties materials synthesis, and pharmacy.
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