A simple and convenient approach to the Friedländer synthesis of pyrano[2,3-b]pyridines
作者:Nagarajan Panneer Selvam、Thelagathoti Hari Babu、Paramasivan T. Perumal
DOI:10.1016/j.tet.2009.08.025
日期:2009.10
SnCl2·2H2O mediated efficient synthesis of pyrano[2,3-b]pyridines was achieved by the Friedländer reaction of 2-amino-3-cyano-4H-pyrans with cyclopentanone/cyclohexanone under solvent-free condition.
在无溶剂条件下,通过2-氨基-3-氰基-4 H-吡喃与环戊酮/环己酮的Friedländer反应,实现了SnCl 2 ·2H 2 O介导的吡喃并[2,3- b ]吡啶的高效合成。