反应详情

24.5 parts by weight of 3,7-dichloro-8-chloromethylquinoline and 13 parts by weight of sodium formate in 220 parts by weight of dimethylsulfoxide are heated for 6 hours at 100° C. The mixture is then cooled, water is added and the precipitated product is filtered off under suction and recrystallized from toluene. 21.5 parts by weight (84% of theory) of 3,7-dichloro-8-formyloxymethylquinoline of melting point 146° C. are obtained.

1. temperatureThe mixture is then cooled
2. filtrationthe precipitated product is filtered off under suction
3. customrecrystallized from toluene