Rhodium-Catalyzed anti-Markovnikov Addition of Secondary Amines to Arylacetylenes at Room Temperature
作者:Kazunori Sakai、Takuya Kochi、Fumitoshi Kakiuchi
DOI:10.1021/ol201453h
日期:2011.8.5
An efficient method for synthesis of E-enamines by the anti-Markovnikov addition of secondary amines to terminal alkynes is described. The reaction of a variety of aryl- and heteroarylacetylenes proceeded at room temperature using a combination of a 8-quinolinolato rhodium complex and P(p-MeOC6H4)(3) as a catalyst. The products were obtained as enamines by simple bulb-to-bulb distillation.
Hydroamination of terminal alkynes with secondary amines catalyzed by copper: regioselective access to amines
A simple and convenient copper-catalyzed hydroamination of arylacetylenes with secondary amines has been performed giving a simple access to aliphatic amines after reduction of the hydroaminated products (E-enamines).