| 碱存在下二烷基硼酸甲酯与氯仿的相转移反应研究 |
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| 引用本文： | 柯天一,单自兴,赵德杰.碱存在下二烷基硼酸甲酯与氯仿的相转移反应研究[J].武汉大学学报(理学版),1995(6). |
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| 作者姓名： | 柯天一 单自兴 赵德杰 |
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| 作者单位： | 武汉大学化学系 |
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| 摘 要： | 由烯烃经一氯硼烷甲硫醚（Ｈ２ＢＣｌ·ＳＭｅ２）硼氢化和甲醇解制得的二烷基硼酸甲酯６，在５０％ＮａＯＨ和相转移催化剂（ＴＥＢＡ）存在下与氯仿反应，继之氧化，获得了相应的二烷基酮１，二环烷基酮２和３以及脂环酮４．考查了各种参数对反应的影响．讨论了反应机理，为从烯烃出发合成各种类型的酮提供了一条简便新途径．
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| 关 键 词： | 有机硼酸盐，相转移催化，二氯卡宾，插入反应，酮的合成 |
THE PHASE TRANSFER REACTION OF METHYL DIALKYLBORINATES WITH CHLOROFORM IN THE PRESENCE OF BASE |
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| Ke Tianyi,Shan Zixing,Zhao Dejie.THE PHASE TRANSFER REACTION OF METHYL DIALKYLBORINATES WITH CHLOROFORM IN THE PRESENCE OF BASE[J].JOurnal of Wuhan University:Natural Science Edition,1995(6). |
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| Authors: | Ke Tianyi Shan Zixing Zhao Dejie |
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| Abstract: | The methyl dialkylborinates, prepared from hydroboration of alkenes with monochloroborane-dimethyl sulfide and then methanolysis,react with 50% NaOH and chloroform under phase transfer conditions,followed by oxidation to give the corresponding dialkyl ketones 1,dicycloalkyl ketones 2 and 3, and alicyclic ketone 4. The influence of various reaction parameters on the reaction was examined and the reaction mechanism was also discussed to provide a new convenient route for synthesis of various ketones from alkenes. |
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| Keywords: | organoborates phase transfer catalysis dichlorocarbene insertion reaction synthesis of ketones |
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