反应详情

3.1 g of anthracene-9-aldehyde and 1.8 g of 1-methyl-1-phenylhydrazine were added to 50 ml of ethanol. To the mixture, two or three drops of 1 N hydrochloric acid were added. The mixture was heated and refluxed for about one hour. The reaction mixture was cooled and the crystals then separated, which were then collected on a suction funnel. The thus obtained crude anthracene-9-aldehyde 1-methyl-1-phenylhydrazone was recrystallized from ethyl acetate. The yield was 2.3 g (48.9%) of yellow needle-like crystals which melt at 162.0°-162.5° C.

1. temperatureThe mixture was heated
2. temperaturerefluxed for about one hour
3. temperatureThe reaction mixture was cooled
4. customthe crystals then separated
5. customwhich were then collected on a suction funnel