Aminium salt promoted catalytic substitution reactions of acetals with silylated nucleophiles
作者:Masaki Kamata、Yukiko Yokoyama、Natsuko Karasawa、Mitsuaki Kato、Eietsu Hasegawa
DOI:10.1016/0040-4039(96)00596-5
日期:1996.5
A catalytic amount of tris(p-bromophenyl)aminium hexachloroantimonate promoted the substitution reactions of dimethylacetals with various silylated nucleophiles through an electron transfer mechanism. Silyl compounds include silyl enol ether, ketene silyl acetal, and allylsilane. One methoxy group of the substrates was effectively substituted by nucleophiles to form carbon-carbon bonds.
催化量的三(对-溴苯基)六氯锑酸铵通过电子转移机理促进了二甲基缩醛与各种甲硅烷基化亲核试剂的取代反应。甲硅烷基化合物包括甲硅烷基烯醇醚,乙烯酮甲硅烷基缩醛和烯丙基硅烷。底物的一个甲氧基被亲核试剂有效取代以形成碳-碳键。