反应详情

A mixture of 500 mg of 1H-imidazo[4,5-c]quinolin-4-ol and about 6 mL of phosphorous oxychloride was heated on a steam bath for about 16 hours, then poured over ice. The mixture was neutralized with saturated sodium bicarbonate solution, then the solid was separated by filtration. The solid was dissolved in dilute hydrochloric acid, the mixture was filtered and the filtrate was neutralized with concentrated ammonium hydroxide to reprecipitate the product. Filtration and drying was followed by recrystallization from methanol to provide crystals of 4-chloro-1H-imidazo[4,5-c]quinoline. Analysis: Calculated for C10H6N3 : %C, 59.0; %H, 3.0; %N, 20.6; Found: %C, 59.5; %H, 3.0; %N, 20.2.

1. temperaturewas heated on a steam bath for about 16 hours
2. additionpoured over ice
3. customthe solid was separated by filtration
4. dissolutionThe solid was dissolved in dilute hydrochloric acid
5. filtrationthe mixture was filtered
6. filtrationFiltration
7. customdrying
8. customwas followed by recrystallization from methanol