Cu-Catalyzed C–H Allylation of Benzimidazoles with Allenes
作者:Yaxi Dong、Bernhard Breit
DOI:10.1021/acs.orglett.1c02346
日期:2021.9.3
CuH-catalyzed intramolecular cyclization and intermolecular allylation of benzimidazoles with allenes have been described. The reaction proceeded smoothly with the catalytic system of Cu(OAc)2/Xantphos and catalytic amount of (MeO)2MeSiH. This protocol features mild reaction conditions and a good tolerance of substrates bearing electron-withdrawing, electron-donating, or electron-neutral groups. A