反应详情

温度

220 °C

A solution of 2-amino-N-(2-chloropyridin-3-yl)-5-methylbenzamide (2.515 g, 9.61 mmol) in sulfolane (15 mL) was treated with hydrogen chloride (0.25 mL, 1.0 mmol; 4N in dioxane). The reaction mixture was heated to 220° C. under microwave conditions for 8 minutes. The reaction mixture was then diluted with ethyl acetate (75 mL) and washed with water (5×50 mL). The organic layer (aqueous emulsion) was concentrated to give an aqueous slurry which was filtered and washed with water (50 mL). The product was dried under high vacuum at 60° C. to afford 8-methyl-5H-benzo[e]pyrido[3,2-b][1,4]diazepin-6(11H)-one (1.52 g) that was used without further purification. LCMS [M+H]: 226.

1. washwashed with water (5×50 mL)
2. concentrationThe organic layer (aqueous emulsion) was concentrated
3. customto give an aqueous slurry which
4. filtrationwas filtered
5. washwashed with water (50 mL)
6. customThe product was dried under high vacuum at 60° C.