[3-Cyano-4,5-dimethyl-5-(trifluoromethyl)furan-2(5H)-ylidene]malononitrile → HCID 86667587, compound

Participants

Reaction Conditions

Reaction Steps

In 6 ml of ethanol were dissolved 200 mg (0.49 mmol) of [3-[2-(4-dibutylamino-2-methoxyphenyl)vinyl]-5,5-dimethyl-2-cyclohexenylidene]acetaldehyde and 136 mg (0.54 mmol) of 2-(3-cyano-4,5-dimethyl-5-trifluoromethyl-2(5H)-furanylidene)propanedinitrile. After the mixture was stirred with heating at 50° C. for 3.5 hours, the solvent was evaporated off. The residue was purified by silica gel column chromatography to give 224 mg of a dark brown crystal (yield: 71.2%; mp: 196-201° C.)

Provenance & Evidence