Facile addition of alkynes to aza-aromatic systems: a new protocol for the preparation of 2-alkynyl-1,2-dihydroquinolines
作者:J.S. Yadav、B.V.S. Reddy、M. Sreenivas、K. Sathaiah
DOI:10.1016/j.tetlet.2005.10.101
日期:2005.12
Alkynes undergo smooth addition to activated quinolines, isoquinolines and pyridines in the presence of copper iodide/(Pr2NEt)-Pr-i under extremely mild conditions to afford 2-alkynyl-1,2-dihydroquinolines in excellent yields with high selectivity. This method is also useful for functionalization of monocyclic pyridines. (c) 2005 Elsevier Ltd. All rights reserved.