반응 #172429

반응 방정식

5-[2-(2-benzyloxy-4-dibutylaminophenyl)vinyl]thiophene-2-carboaldehyde

2-(3-cyano-4-methyl-5-phenyl-5-trifluoromethyl-2(5H)-furanylidene)propanedinitrile

→

dark reddish brown crystal

수율 94.7%

2-[4-[2-[5-[2-(2-benzyloxy-4-dibutylaminophenyl)vinyl]thiophene-2-yl]vinyl]-3-cyano-5-phenyl-5-trifluoromethyl-2(5H)-furanylidene]propanedinitrile

수율 94.7%

용매

ethanol

tetrahydrofuran

반응 조건

후처리

1. 1
   workup.STIRRINGfurther stirred
2. 2
   온도with heating at 50° C. for 3 hours
3. 3
   기타The solvent was evaporated off
4. 4
   세척the residue was washed with ethanol

실험 절차

In 15 ml of ethanol and 5 ml of tetrahydrofuran were dissolved 730 mg (1.63 mmol) of 5-[2-(2-benzyloxy-4-dibutylaminophenyl)vinyl]thiophene-2-carboaldehyde and 573 mg (1.82 mmol) of 2-(3-cyano-4-methyl-5-phenyl-5-trifluoromethyl-2(5H)-furanylidene)propanedinitrile. The mixture was stirred at room temperature for 21 hours and further stirred with heating at 50° C. for 3 hours. The solvent was evaporated off and the residue was washed with ethanol to give 1.15 g of a dark reddish brown crystal (yield: 94.7%; mp: 196-197° C.)

출처