反应详情

温度

250 °C

Diethyl({[4-(methyloxy)phenyl]amino}methylidene)propanedioate (100 g, 0.34 mol) was taken up in Dowtherm (500 mL) and heated at 250° C. for 1.5 h; 75% conversion. The reaction solution was cooled, treated with hexanes (750 mL) and cooled to 0° C. in ice bath. The brown solid was filtered off and washed with hexanes (2×) and dried under vacuum to give 60 g (71%).

1. temperatureThe reaction solution was cooled
2. temperaturecooled to 0° C. in ice bath
3. filtrationThe brown solid was filtered off
4. washwashed with hexanes (2×)
5. customdried under vacuum
6. customto give 60 g (71%)