反应详情

53.02 g (0.21 mol) of 2-chloro-3-methyl-4-methylsulfonylbenzoic acid were dissolved in 400 ml of methanol and HCl was passed in at reflux temperature for 3 h. The mixture was then allowed to cool and completely concentrated on a rotary evaporator.

1. temperatureat reflux temperature for 3 h
2. temperatureto cool
3. concentrationcompletely concentrated on a rotary evaporator