NIXANTPHOS: a highly active ligand for palladium catalyzed Buchwald–Hartwig amination of unactivated aryl chlorides
作者:Jianyou Mao、Jiadi Zhang、Shuguang Zhang、Patrick J. Walsh
DOI:10.1039/c8dt01852a
日期:——
catalyzed Buchwald–Hartwigamination reactions, because of its broad scope and high probability of success. It does not, however, work well with unactivated arylchlorides. Herein NIXANTPHOS is compared to Xantphos and an array of mono- and bidentate phosphines. NIXANTPHOS outperforms Xantphos and all other bidentate ligands examined. Under the optimal reaction conditions, unactivated arylchlorides afford