反应详情

Vigorously stirred aqueous ammonia solution (70 mL; 32% w/w) is treated dropwise with warm molten 3-cyclopentyloxy-4-methoxybenzoyl chloride (25.7 g) during a period of 20 minutes, keeping the temperature below 20° C. Stirring is continued at 20° C. for 2 hours, and then the suspension is filtered. The resulting solid is washed with water until free of ammonia, and is then dried under vacuum at 40-45° C., to give 3-cyclopentyloxy-4-methoxybenzamide (21.78 g), in the form of a buff solid.

1. customthe temperature below 20° C
2. filtrationthe suspension is filtered
3. washThe resulting solid is washed with water until free of ammonia
4. customis then dried under vacuum at 40-45° C.