A new route to 3-acyl-2-aminobenzofurans: palladium-catalysed cycloisomerisation of 2-(cyanomethyl)phenyl esters
作者:Masahito Murai、Koji Miki、Kouichi Ohe
DOI:10.1039/b904127c
日期:——
Treatment of 2-(cyanomethyl)phenyl esters with a catalytic amount of Pd(OAc)(2), PCy(3), and Zn afforded 3-acyl-2-aminobenzofuran derivatives in good to excellent yields, which can be used as building blocks for the synthesis of benzofuran fused heterocycles.
用催化量的Pd(OAc)(2),PCy(3)和Zn处理2-(氰基甲基)苯基酯可得到3-酰基-2-氨基苯并呋喃衍生物,其收率高至优异,可用于建筑苯并呋喃稠合杂环的合成嵌段。