Platinum-Catalyzed Formal Markownikoff’s Hydroamination/Hydroarylation Cascade of Terminal Alkynes Assisted by Tethered Hydroxyl Groups
摘要:
An efficient method for Markownikoff's hydroamination-hydroarylation of alkynols using PtBr2 as catalyst has been developed. The platinum-catalyzed reactions of alkynols with amino group containing aromatics were achieved in methanol over a reaction time of 6-24 h and temperature ranging from rt to 80 degrees C. This method works well for a variety of alkynols and aromatic amino compounds to give substituted pyrrolo[1,2-a]quinoxalines and indolo[3,2-c]quinolines in good to excellent yields.
Platinum-Catalyzed Formal Markownikoff’s Hydroamination/Hydroarylation Cascade of Terminal Alkynes Assisted by Tethered Hydroxyl Groups
作者:Nitin T. Patil、Rahul D. Kavthe、Vivek S. Raut、Vaddu V. N. Reddy
DOI:10.1021/jo901200j
日期:2009.8.21
An efficient method for Markownikoff's hydroamination-hydroarylation of alkynols using PtBr2 as catalyst has been developed. The platinum-catalyzed reactions of alkynols with amino group containing aromatics were achieved in methanol over a reaction time of 6-24 h and temperature ranging from rt to 80 degrees C. This method works well for a variety of alkynols and aromatic amino compounds to give substituted pyrrolo[1,2-a]quinoxalines and indolo[3,2-c]quinolines in good to excellent yields.