title: Propargylamine synthesis by copper-catalyzed oxidative coupling of alkynes and tertiary amine N-oxides.
abstract: An efficient method for synthesizing N,N-dimethylpropargylamines is described. The synthesis exploited the Cu(II)-catalyzed oxidative alkynylation reaction of trimethylamine N-oxides with alkynes in the absence of external oxidant. Both aromatic and aliphatic alkynes were utilized to achieve the corresponding products in moderate to excellent yields. The reaction conditions tolerated ester, hydroxy, and aldehyde groups.
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China.
authors.forename: Zhanwei
authors.initials: Z
authors.lastname: Xu
authors.forename: Xiaoqiang
authors.initials: X
authors.lastname: Yu
authors.forename: Xiujuan
authors.initials: X
authors.lastname: Feng
authors.forename: Ming
authors.initials: M
authors.lastname: Bao