Synthesis of a 6H-Benzofuro[3,2-c][1]benzopyran-6-one. A New Application of the Hurtley Reaction
作者:Andreas Werner、Willy Friedrichsen
DOI:10.1080/00397919308011139
日期:1993.12
Abstract A copper(I)bromide promoted substitution of 2-bromobenzofuran-3- carboxylic acid (2b) with dimedone and subsequent lactonization offers a new route to a modified coumestane ring system.