반응 #1435701

반응 방정식

piperidine

2-(2-tert-butyl-6-methyl-pyran-4-ylidene)-malononitrile

5-(4-diphenylamino-phenyl)-thiophene-2-carbaldehyde

→

target compound

수율 50.0%

2-(2-tert-butyl-6-{2-[5-(4-diphenylamino-phenyl)-thiophene-2-yl]-vinyl}-pyran-4-ylidene)-malononitrile

수율 50.0%

용매

ethanol

반응 조건

후처리

1. 1
   workup.ADDITIONwas added
2. 2
   온도The reaction solution was heated for 24 hours
3. 3
   온도while refluxing
4. 4
   온도After cooling the reaction solution
5. 5
   여과the precipitated red solid was filtered
6. 6
   기타recrystallized with ethanol

실험 절차

As shown in the following reaction 3, 0.72 g (3.37 mmol) of (2-(2-tert-butyl-6-methyl-pyran-4-ylidene)-malononitrile and 1 g (2.81 mmol) of 5-(4-diphenylamino-phenyl)-thiophene-2-carbaldehyde were added into 50 ml of ethanol, and 0.28 g (3.37 mmol) of piperidine was added thereto. The reaction solution was heated for 24 hours while refluxing. After cooling the reaction solution, the precipitated red solid was filtered, and recrystallized with ethanol to obtain 0.79 g of the target compound (Yield 50%).

출처