Palladium-catalyzed direct oxidative vinylation of thiophenes and furans under weakly basic conditions
作者:Atsushi Maehara、Tetsuya Satoh、Masahiro Miura
DOI:10.1016/j.tet.2008.01.058
日期:2008.6
The palladium-catalyzed oxidative coupling of thiophenes and furans with alkenes proceeds in the presence of copper and lithium salts as oxidant and additive, respectively, under weakly basic or almost neutral conditions to afford the corresponding vinylated heteroarenes. Under such conditions, diphenyl(hydroxy)methyl and acetal functions on the heteroarene substrates are tolerable. The former function