P-Chiral Monophosphorus Ligands for Asymmetric Copper-Catalyzed Allylic Alkylation
作者:Wenrui Xiong、Guangqing Xu、Xinhong Yu、Wenjun Tang
DOI:10.1021/acs.organomet.9b00194
日期:2019.10.28
Asymmetric copper-catalyzed allylic alkylation between allyl bromides and alkyl Grignard reagents using a P-chiral monophosphorus ligand is described. A range of terminal olefins bearing tertiary or quaternary carbon centers were formed in good branched/linear selectivities and excellent enantioselectivities at copper loadings as low as 0.5 mol %.
描述了使用P-手性单磷配体在烯丙基溴和烷基格氏试剂之间的不对称铜催化的烯丙基烷基化。在低至0.5mol%的铜负载下,形成具有良好支化/线性选择性和优异对映选择性的一系列带有叔碳或季碳中心的末端烯烃。