Synthesis of polysubstituted pyridines via reactions of chalcones and malononitrile in alcohols using Amberlite IRA-400 (OH−)
作者:Kiumars Bahrami、Mohammad M. Khodaei、Fardin Naali、Behrooz H. Yousefi
DOI:10.1016/j.tetlet.2013.07.080
日期:2013.9
Polysubstituted pyridine derivatives were synthesized through economical one-pot multicomponent reactions of different α,β-unsaturated ketones, malononitrile, and ethanol or methanol in the presence of Amberlite IRA-400 (OH−) at room temperature. The catalyst is recyclable several times without substantial loss of activity. Other valuable features include the wide range of functional group tolerance