Oxidative Aminocarbonylation of Terminal Alkynes for the Synthesis of Alk-2-ynamides by Using Palladium-on-Carbon as Efficient, Heterogeneous, Phosphine-Free, and Reusable Catalyst
作者:Sandip T. Gadge、Mayur V. Khedkar、Satish R. Lanke、Bhalchandra M. Bhanage
DOI:10.1002/adsc.201200041
日期:2012.7.9
(Pd/C)‐catalyzed oxidativeaminocarbonylations of alk‐1‐ynes with secondary amines provide the corresponding alk‐2‐ynamides in a good to excellent yields. This new methodology is applicable for the synthesis of a wide range of biologically active alk‐2‐ynamide derivatives. The developed protocol avoids the use of phosphine ligands, with an additional advantage of palladium catalyst recovery and reuse for up