作者:Naoki Asao、Yoshinori Yamamoto
DOI:10.1246/bcsj.73.1071
日期:2000.5
carbostannation of unactivated alkynes with organosilanes, or organostannanes proceed effectively in the presence of catalytic amounts of Lewis acids to produce the corresponding vinylsilyl or vinylstannyl compounds in a highly regio- and stereoselective way. Although it is well known that transition metal catalyzed hydrometalations and carbometalations, in general, proceed in a cis-manner, the Lewis acid-catalyzed
在催化量的路易斯酸存在下,未活化的炔烃与有机硅烷或有机锡烷的氢化硅烷化、氢化锡化、碳硅烷化和碳锡化有效地进行,以高度区域和立体选择性的方式产生相应的乙烯基甲硅烷基或乙烯基甲锡烷基化合物。尽管众所周知过渡金属催化的加氢金属化和碳金属化通常以顺式方式进行,但路易斯酸催化的反应仅以反式方式进行。三键与路易斯酸的配位被认为是路易斯酸催化反应的关键步骤。