Rhodanine → HCID 86613957, compound

Participants

Reaction Steps

1.50 g of 1-(biphenyl-4-ylmethyl)-2-oxo-1,2,3,4-tetrahydroquinoline-5-carboxaldehyde and 0.761 g of 2-thioxo-1,3-thiazolidin-4-one were suspended in 20 ml of toluene. Two drops of piperidine and two drops of acetic acid were added to the suspension, followed by heating and refluxing for 4 hours. After allowing to cool, the solid thus precipitated was collected by filtration, and dried, giving 2.34 g (91% yield) of 1-(biphenyl-4-ylmethyl)-5-(4-oxo-2-thioxothiazolidine-5-ylidenemethyl)-3,4-dihydro-1H-quinolin-2-one as a yellow powder.

Provenance & Evidence