Dichloromethane → 3-Chlorobenzoic Acid

Participants

Reaction Conditions

Reaction Steps

23.4 g (0.1 mol) of the Schiff base of D-valine and anisaldehyde prepared according to Ia) was dissolved, with stirring, in 130 ml of dry dichloromethane. The solution was cooled to 5° C. or lower. The stirring was continued and the temperature was allowed to rise to room temperature, after which the stirring was continued for 4 more hours. After about 0.5 hour's stirring at room temperature the mixture became turbid as a result of the crystallization of meta-chlorobenzoic acid. After the reaction, in which all the meta-chlorobenzoic acid formed crystallized, the reaction mixture was filtered and the filtered solution was evaporation until dry.

Provenance & Evidence