Regioselective synthesis of fluoroalkyl pyridine derivatives from 3-fluoroalkyl substituted 2-aza-1,3-butadienes
作者:Francisco Palacios、Concepción Alonso、Gloria Rubiales、Maite Villegas
DOI:10.1016/j.tetlet.2004.03.174
日期:2004.5
A method for the preparation of 3-fluoroalkyl substituted 2-aza-butadienes by aza-Wittig reaction of N-vinylic phosphazenes and aldehydes is reported. [4+2] Cycloaddition reaction with enamines affords fluoralkyl Substituted pyridine derivatives in a regioselective fashion. (C) 2004 Elsevier Ltd. All rights reserved.