作者:Ryosuke Takise、Kei Muto、Junichiro Yamaguchi、Kenichiro Itami
DOI:10.1002/anie.201403823
日期:2014.6.23
The nickel‐catalyzed α‐arylation of ketones with readily available phenol derivatives (esters and carbamates) provides access to useful α‐arylketones. For this transformation, 3,4‐bis(dicyclohexylphosphino)thiophene (dcypt) was identified as a new, enabling, air‐stable ligand for this transformation. The intermediate of an assumed CO oxidative addition was isolated and characterized by X‐ray crystal‐structure
镍与容易获得的苯酚衍生物(酯和氨基甲酸酯)催化的α-芳基化反应提供了有用的α-芳基酮的获得途径。对于此转化,3,4-双(二环己基膦基)噻吩(dcypt)被确定为该转化的一种新的,稳定的,空气稳定的配体。假定C的中间 ö氧化加成物分离和表征通过X射线晶体结构分析。