Cationic Late-Transition-Metal Complexes Catalyze the Ring Opening of Aziridines with Amines
作者:Christoph Schneider、Alex Marti、Saravanan Peruncheralathan
DOI:10.1055/s-0031-1289611
日期:2012.1
Cationic palladium and nickel complexes have been found to catalyze the ring-opening of meso-N-aryl aziridines with anilines very efficiently and furnish valuable 1,2-diamines in typically excellent yields. The active catalysts were generated in situ from the corresponding metal dichloride bis(triphenylphosphine) complexes through chloride abstraction with a silver salt. This new protocol is applicable across a broad substrate range with both cyclic as well as acyclic aziridines. In addition, cationic gold-phosphine complexes proved to be highly reactive as well as delivering products in comparable rates and yields.
阳离子钯和镍配合物已被发现能够非常有效地催化间-N-芳基氮丙啶与苯胺的环开环反应,并生成有价值的1,2-二胺,且产率通常很高。活性催化剂是通过用银盐进行氯化物提取,从相应的金属二氯化物双(三苯基膦)配合物中原位生成的。这种新方法适用于广泛的底物范围,包括环状和非环状氮丙啶。此外,阳离子金-膦配合物被证明具有高反应性,且产率和产率相当。