A one-pot synthesis of various primary amines is described. Potassium 1,1,3,3-tetramethyldisilazide, prepared from 1,1,3,3-tetramethyldisilazane and potassium hydride, reacts with alkyl bromides, iodides, tosylates, benzylic chlorides, and allylic chlorides to give the corresponding N,N-bis(dimethylsilyl)amines in high yields. Subsequent deprotection of the dimethylsilyl group was performed under mildly acidic conditions to afford primary amines. This method was also applied to the preparation of aminomethylated cross-linked polystyrene.
描述了一种一锅合成各种一级胺的方法。由1,1,3,3-
四甲基二硅氮烷和
氢化钾制备的
氢化钾1,1,3,3-
四甲基二硅氮烷与烷基
溴、
碘、托基
磺酸盐、苄基
氯和烯丙基
氯反应,产生相应的N,N-双(二甲基
硅基)胺,产率很高。随后在温和酸性条件下去保护二甲基
硅基,从而获得一级胺。该方法还应用于制备
氨基甲基化交联聚
苯乙烯。