An Umpolung Strategy for the Synthesis of β-Aminoketones via Copper-Catalyzed Electrophilic Amination of Cyclopropanols
作者:Zhishi Ye、Mingji Dai
DOI:10.1021/acs.orglett.5b00828
日期:2015.5.1
A novel copper-catalyzed electrophilic amination of cyclopropanols with O-benzoyl-N,N-dialkylhydroxylamines to synthesize various β-aminoketones via a sequence that includes C–C bond cleavage and Csp3–N bond formation is reported. The reaction conditions are mild and tolerate a wide range of functional groups including benzoate, tosylate, expoxide, and α,β-unsaturated carbonyls, which are incompatible
报道了一种新颖的铜催化的环丙醇与邻苯甲酰基-N,N-二烷基羟胺的亲电胺化反应,可通过包括C-C键断裂和C sp 3 -N键形成的序列合成各种β-氨基酮。反应条件温和,可耐受各种官能团,包括苯甲酸酯,甲苯磺酸酯,环氧化合物和α,β-不饱和羰基,它们在传统的胺亲核共轭物加成反应和曼尼希反应条件下不相容。还已经描述了该蛋白酚β-氨基酮合成方法的初步机理研究和提议的催化循环。