Rhodium-Catalyzed Cycloisomerization of 2-Silylethynyl Phenols and Anilines via 1,2-Silicon Migration
作者:Hiroshi Kanno、Kyosuke Nakamura、Keiichi Noguchi、Yu Shibata、Ken Tanaka
DOI:10.1021/acs.orglett.6b00529
日期:2016.4.1
It has been established that a cationic rhodium(I)/BINAP complex catalyzes the cycloisomerization of 2-silylethynylphenols, leading to 3-silylbenzofurans, via 1,2-silicon migration. Similarly, the cycloisomerization of 2-silylethynylanilines, leading to 3-silylindoles, via 1,2-silicon migration was catalyzed by a cationic rhodium(I)/H8–BINAP complex.
已经确定,阳离子铑(I)/ BINAP络合物催化2-甲硅烷基乙炔基苯酚的环异构化,通过1,2-硅迁移导致3-甲硅烷基苯并呋喃。同样,阳离子铑(I)/ H 8 -BINAP络合物催化通过1,2-硅迁移的2-甲硅烷基乙炔基苯胺的环异构化,生成3-甲硅烷基。