Toluene → HCID 19066513, compound

Participants

Reaction Steps

A 10 ml toluene solution of 4.54 g (14.8 mmol) of N-(4-chlorophenyl)-N-methoxycarbonyl-N'-(3-pyridyl)ethylenediamine in a 100 ml round-bottomed flask was heated gradually and, while distilling off toluene, it was heated for 1.5 hours at 190° to 210° C. The amorphous reaction mixture was cooled to room temperature and methylene chloride was added to dissolve. This was purified by column chromatography (silica gel, ethyl acetate:n-hexane=5:1) to obtain 2.28 g (yield 56%) of 1-(4-chlorophenyl)-3-(3-pyridyl)-2-imidazolidinone as brown crystals.

Provenance & Evidence