反应详情

温度

210 °C

A mixture of (1,3,3-trimethyl-2,3-dihydro-1H-indol-2-yl)acetonitrile (397 mg, 2.00 mmol) and (2Z)-2-[(2E)-3-methoxyprop-2-en-1-ylidene]-1-benzothiophen-3(2H)-one 1,1-dioxide (501 mg, 2.00 mmol) were placed in a 10-mL one-necked round bottom flask. The flask was heated in an oil bath at 210° C. for 2 hours and then cooled to room temperature. The reaction mixture was extracted with dichloromethane (100 mL). The organic solution was passed through a short silica column, the dichloromethane was evaporated and the pure dye was obtained by recrystallization from methanol. The yield was 511 mg of green crystals (63% of theory).

1. customwere placed in a 10-mL one-necked round bottom flask
2. temperaturecooled to room temperature
3. extractionThe reaction mixture was extracted with dichloromethane (100 mL)
4. customthe dichloromethane was evaporated
5. customthe pure dye was obtained by recrystallization from methanol