反应详情

A solution of dl-threo-methylphenidate (1 g) in water (25 ml) and conc. HCl (5 ml) was heated under reflux for 3 h. The clear solution was evaporated to dryness, to give a dl-threo-ritalinic acid hydrochloride as a white solid.

1. temperatureunder reflux for 3 h
2. customThe clear solution was evaporated to dryness