반응 #172421

반응 방정식

5-[2-(4-dibutylamino-2-methoxyphenyl)vinyl]thiophene-2-carboaldehyde

2-(3-cyano-4,5,5-trimethyl-2(5H)-furanylidene)propanedinitrile

ammonium acetate

→

brown powdered crystal

수율 75.1%

2-[4-[2-[5-[2-(4-dibutylamino-2-methoxyphenyl)vinyl]thiophene-2-yl]vinyl]-3-cyano-5,5-dimethyl-2(5H)-furanylidene]propanedinitrile

수율 75.1%

용매

ethanol

tetrahydrofuran

반응 조건

후처리

1. 1
   기타The solvent was evaporated off
2. 2
   세척the residue was washed with ethanol

실험 절차

In 10 ml of ethanol and 3 ml of tetrahydrofuran were dissolved 300 mg (0.81 mmol) of 5-[2-(4-dibutylamino-2-methoxyphenyl)vinyl]thiophene-2-carboaldehyde and 177 mg (0.89 mmol) of 2-(3-cyano-4,5,5-trimethyl-2(5H)-furanylidene)propanedinitrile. To this mixture was added 63 mg of ammonium acetate, and the mixture was stirred at room temperature for 24 hours and further at 50° C. for 2.5 hours. The solvent was evaporated off and the residue was washed with ethanol to give 335 mg of a brown powdered crystal (yield: 75.1%; mp: 191-192° C.)

출처