Co(II) PCP Pincer Complexes as Catalysts for the Alkylation of Aromatic Amines with Primary Alcohols
作者:Matthias Mastalir、Gerald Tomsu、Ernst Pittenauer、Günter Allmaier、Karl Kirchner
DOI:10.1021/acs.orglett.6b01647
日期:2016.7.15
Efficient alkylations of amines by alcohols catalyzed by well-defined Co(II) complexes are described that are stabilized by a PCP ligand (N,N′-bis(diisopropylphosphino)-N,N′-dimethyl-1,3-diaminobenzene) based on the 1,3-diaminobenzene scaffold. This reaction is an environmentally benign process implementing inexpensive, earth-abundant nonprecious metal catalysts and is based on the acceptorless alcohol
描述了由定义明确的Co(II)配合物催化的醇对胺的有效烷基化作用,并通过PCP配体(基于N,N'-双(二异丙基膦基)-N,N'-二甲基-1,3-二氨基苯)稳定化在1,3-二氨基苯支架上 该反应是一种环境友好的方法,采用廉价的,富含地球的非贵金属催化剂,并且基于无受体醇脱氢概念。一系列伯醇和芳族胺以良好或优异的分离收率有效地转化为单-N-烷基化胺。