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ouyiji017木蟲 (小有名氣)
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摘要：Morita-Baylis-Hillman(MBH)反應(yīng)是一類形成碳-碳鍵,生成含有多個(gè)官能團(tuán)分子的有效合成反應(yīng),自從20世紀(jì)80年代起越來越受到化學(xué)家們的重視。MBH反應(yīng)主要是醛和活性多烯生成多官能團(tuán)化合物的反應(yīng)。此類反應(yīng)具有高效合成方法所具備的基本特征,如反應(yīng)選擇性(化學(xué)的、區(qū)域的、非對(duì)映的和對(duì)映的)、原子經(jīng)濟(jì)性、反應(yīng)條件溫和以及產(chǎn)物具有多個(gè)能進(jìn)一步轉(zhuǎn)換的官能團(tuán)。2000年以后，該類反應(yīng)已有多篇高水平綜述文章相繼發(fā)表，表明該類反應(yīng)在有機(jī)合成上極具應(yīng)用前景和發(fā)展?jié)摿�。近年來該反�?yīng)的研究，特別是小分子催化的MBH反應(yīng)的研究非�；钴S。但MBH反應(yīng)也存在一些缺點(diǎn)，如反應(yīng)速率慢、轉(zhuǎn)化效率低、底物范圍較窄�；谶@些缺點(diǎn)，本文經(jīng)兩步反應(yīng)合成一系列芳香醛衍生MBH碳酸酯，為研究MBH碳酸酯烯丙基烷基化反應(yīng)做好基礎(chǔ)研究工作。 關(guān)鍵詞: MBH反應(yīng) 不對(duì)稱有機(jī)催化 |
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ouyiji017: 金幣+70, 翻譯EPI+1, ★★★★★最佳答案, 呵呵，非常感謝！ 2014-05-09 10:08:22
ouyiji017: 金幣+70, 翻譯EPI+1, ★★★★★最佳答案, 呵呵，非常感謝！ 2014-05-09 10:08:22
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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樓2014-05-08 00:12:42
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