Copper(I) Chloride-Catalyzed Three-Component Coupling Reaction of Primary Amines with Electrophiles and α-Halogen-Substituted Allylsilanes to Form Unsymmetrical Tertiary Amines
作者:Makoto Kozuka、Akihiko Inoue、Teruko Tsuchida、Michiharu Mitani
DOI:10.1002/adsc.200505406
日期:2006.5
straightforwardly formed by the copper(I) chloride-catalyzed tandem reaction of primary amines, α-halogen-substituted allylsilanes, and electrophiles such as electron-deficient olefins, alkyl halides, alkyl tosylates, or epoxides. In the case using electron-deficient olefins as the electrophile, the addition of chloroacetone to the reaction system afforded the three-component coupling reaction more effectively
具有三种不同取代基的叔胺(其中包括乙烯基硅烷官能团)是通过伯胺,α-卤素取代的烯丙基硅烷和亲电子试剂(例如缺电子的烯烃)的氯化铜催化串联反应直接形成的,烷基卤化物,烷基甲苯磺酸盐或环氧化物。在使用缺电子的烯烃作为亲电子试剂的情况下,向反应体系中添加氯丙酮可更有效地提供三组分偶联反应。硼酸三甲酯作为助催化剂的添加提高了使用烷基卤化物,甲苯磺酸烷基酯或环氧化物作为亲电子试剂的反应中三组分偶联产物的产率,尽管反应时间延长了。