Rapid Construction of Multisubstituted Olefin Structures Using Vinylboronate Ester Platform Leading to Highly Fluorescent Materials
作者:Kenichiro Itami、Keisuke Tonogaki、Youichi Ohashi、Jun-ichi Yoshida
DOI:10.1021/ol048217b
日期:2004.10.1
A catalytic one-pot triarylation on the C=C core of vinylboronate pinacol ester (1) produces extended T-systems based on a multisubstituted olefin structure very rapidly. We established an efficient protocol for the Pd-catalyzed double C-H arylation of 1 with aryl halides, which was successfully integrated with C-B arylation with aryl halides (cross-coupling) in one pot. By using this method, several highly fluorescent materials with a wide range of color variations (blue to red) were discovered.