A new oxidation system for the oxidation of Hantzsch-1,4-dihydropyridines and polyhydroquinoline derivatives under mild conditions†
Abstract
A new oxidation system (Na2S2O4/TBHP) to prepare pyridine derivatives has been developed by the oxidation of 1,4-dihydropyridine derivatives and polyhydroquinoline derivatives in good to excellent yields. The procedures of the reaction were green, convenient, mild and easy work-up.