反应详情

温度

50 °C

In 6 ml of ethanol and 2 ml of tetrahydrofuran were dissolved 239 mg (0.54 mmol) of [3-[2-(4-dibutylamino-2-methoxyphenyl) vinyl]-2-methoxy-5,5-dimethyl-2-cyclohexenylidene]acetaldehyde and 120 mg (0.60 mmol) of 2-(3-cyano-4,5,5-trimethyl-2(5H)-furanylidene)propanedinitrile. To this mixture was added 42 mg of ammonium acetate, and the mixture was stirred with heating at 50° C. for 2.5 hours. The solvent was evaporated off and the residue was purified by silica gel column chromatography to give 279 mg of a dark brown crystal (yield: 82.7%; mp: 244-246° C.).

1. customThe solvent was evaporated off
2. customthe residue was purified by silica gel column chromatography