反应详情

温度

50 °C

6-Amino-2,4-dichloro-[1,3,5]triazine (XXXVII) (30.0 g, 187 mmol) was dissolved in acetone (100 mL) and poured into ice-water (100 mL) to form a very fine suspension. To this mixture, a solution of propan-1-amine (11.0 g, 187 mmol) in acetone (20 mL) was added at 0° C. To this reaction, 2 N NaOH (94 mL, 187 mmol) was added dropwise at a rate to keep the temperature between 0° C. and 5° C. The mixture was stirred for 30 min at ambient temperature and for an additional 60 min at 50° C. The mixture was concentrated and then the precipitate was filtered off and washed with water (3×100 mL). After drying over calcium chloride under high vacuum, 6-amino-2-chloro-4-n-propylamino-[1,3,5]triazine (XXXVIII) was isolated as a white powder (35 g, 100% yield). LCMS (ESI) m/z=188 (M+H)+.

1. customto form a very fine suspension
2. additionwas added dropwise at a rate
3. customthe temperature between 0° C. and 5° C
4. concentrationThe mixture was concentrated
5. filtrationthe precipitate was filtered off
6. washwashed with water (3×100 mL)
7. dry with materialAfter drying over calcium chloride under high vacuum