2-(3-Cyano-4-methyl-5-phenyl-5-(trifluoromethyl)furan-2(5H)-ylidene)malononitrile → HCID 86667582, compound

Participants

Reaction Conditions

Reaction Steps

In 8 ml of ethanol were dissolved 220 mg (0.55 mmol) of 5-[4-(4-dibutylamino-2-methoxyphenyl)-1,3-butadienyl]thiophene-2-carboaldehyde and 192 mg (0.61 mmol) of 2-(3-cyano-4-methyl-5-phenyl-5-trifluoromethyl-2(5H)-furanylidene)propanedinitrile. After the mixture was stirred with heating at 50° C. for 2.5 hours, the product was separated by filtration and washed with ethanol. The product was purified by silica gel column chromatography to give 300 mg of a black crystal (yield: 78.1%; mp: 125-140° C.)

Provenance & Evidence