Green Synthesis of 1-Aryl-1,12-Dihydrobenzo[<i>h</i>]Pyrano[<i>c</i>]Chromene Derivatives
作者:Maryam Abbasi Eshlaghi、Behrooz Mirza、Mohsen Zeeb
DOI:10.3184/174751914x13987950600120
日期:2014.6
An efficient green synthesis of eight 3-amino-12-oxo-1-aryl-1,12-dihydrobenzo[h] pyrano[3,2-c] chromene-2-carbonitriles may be achieved by a three-component, one-pot reaction between 4-hydroxy-2H-benzo[h] chromen-2-one, malononitrile and various araldehydes in water in the presence of NEt3.