Hantzsch ester → HCID 86613936, compound

Participants

Reaction Steps

0.96 g of 5-[1-(4-chlorobenzyl)-2-oxo-1,2-dihydroquinolin-4-ylmethylidene]thiazolidine-2,4-dione, 0.735 g of diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate, and 0.96 g of silica gel were added to 30 ml of toluene, followed by heating and refluxing overnight. The solvent was distilled off, and the residue was purified by silica gel column chromatography (dichloromethane:ethyl acetate of 10:1→3:1), and the purified product was recrystallized from a chloroform-ether mixed solvent, giving 0.87 g (91% yield) of 5-[1-(4-chlorobenzyl)-2-oxo-1,2-dihydroquinolin-4-ylmethyl]thiazolidine-2,4-dione as a white powder.

Provenance & Evidence