One-Pot Synthesis of Unsymmetrical Bis(4-Hydroxycoumarin-3-yl)methanes
作者:Pulak Bhuyan、Sinki Kolita、Leema Dutta、Pankaj Das
DOI:10.1055/s-0036-1589065
日期:2017.10
Unsymmetrical bis(4-hydroxycoumarin-3-yl)methane derivatives have been synthesized from 4-hydroxycoumarins, aldehydes, and secondary amines via 3-(aminoalkyl)-4-hydroxycoumarin intermediates, followed by substitution.
A convenient and practical InCl3 catalyzed three-component reaction of 4-hydroxy coumarin/1,3 diones, aromatic aldehyde, and secondary amine for the synthesis of alpha-benzylamino coumarins and diketones in good yields has been reported. (c) 2012 Elsevier Ltd. All rights reserved.