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摘要：Morita-Baylis-Hillman(MBH)反应是一类形成碳-碳键,生成含有多个官能团分子的有效合成反应,自从20世纪80年代起越来越受到化学家们的重视。MBH反应主要是醛和活性多烯生成多官能团化合物的反应。此类反应具有高效合成方法所具备的基本特征,如反应选择性(化学的、区域的、非对映的和对映的)、原子经济性、反应条件温和以及产物具有多个能进一步转换的官能团。2000年以后，该类反应已有多篇高水平综述文章相继发表，表明该类反应在有机合成上极具应用前景和发展潜力。近年来该反应的研究，特别是小分子催化的MBH反应的研究非常活跃。但MBH反应也存在一些缺点，如反应速率慢、转化效率低、底物范围较窄。基于这些缺点，本文经两步反应合成一系列芳香醛衍生MBH碳酸酯，为研究MBH碳酸酯烯丙基烷基化反应做好基础研究工作。 关键词: MBH反应 不对称有机催化 |
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Abstract : Morita-Baylis-Hillman (MBH) reaction is a kind of effective synthesis reaction of carbon - carbon bond formation to generate multiple functional group molecules which has absorbed more and more attention of chemists of various field since 1980s. Being the polyfunctional compound formation reaction of aldehyde and active polyene,MBH reaction is characterized with the basic features of high efficient synthetic methods such as reaction selectivity ( chemical , regional , diastereomeric and mapped ) , atom economy , mild reaction conditions and the product have many functional groups which can further convert to other groups . Many published high level review articles after the year of 2000 indicated the great expectation and development potential of MBH reaction in organic synthesis. Recently , studies of the reaction , in particular small molecule -catalyzed MBH reaction is very active .Hower , MBH reaction has its own drawbacks, such as slow reaction rate , lower conversion efficiency , fewer reaction substrates . To overcome these shortcomings , a two-step reaction of aldehydes derived MBH carbonate was invesgated ,which is the fundamental research of further MBH allyl carbonate alkylation study. Keywords : MBH reaction ;asymmetric organocatalysis |
2楼2014-05-08 00:12:42
