反应详情

A solution of 2-methoxy-4-cyanobenzoyl chloride (2 g, 10 mmol) in dichloromethane (20 ml) was added dropwise in 1 h to a solution of 4,5-dichlorophenylendiamine (3.54 g, 20 mmol) and triethylamine (10.1 g=13.9 ml, 100 mmol) in dichloromethane (20 ml). Stirring was continued for additional two hours. The solvent was removed under vacuum and the residue was triturated with water (50 ml), filtered and dried at 50° C. under vacuum. The solid was suspended in diethyl ether (150 ml), stirred for 1 h, filtered and dried under vacuum to give 2.9 g of N-(2-amino-4,5-dichlorophenyl)-2-methoxy-4-cyanobenzamide (yield 43%), mp>250° C.

1. customThe solvent was removed under vacuum
2. customthe residue was triturated with water (50 ml)
3. filtrationfiltered
4. customdried at 50° C. under vacuum
5. stirringstirred for 1 h
6. filtrationfiltered
7. customdried under vacuum