Hydrochloric Acid → 5-Chloro-2-methoxybenzenebutanoic acid

Participants

Reaction Conditions

Reaction Steps

The acid compound of step 1 above is added to a stirring mixture of toluene (22 ml), conc HCl (41 ml), water (17 ml) and the recovered product of mossy zinc (22.2 g) and mercuric chloride (2.2 g) stirred in an aqueous HCl solution for about 10 minutes. The mixture is stirred under reflux for about 16 hours, diluted with water, extracted with ethyl acetate and the organic layer is dried filtered and evaporated. The residue is taken up in 10% aqueous NaOH, and dimethyl sulfate (about 25 ml) added to the mixture which is heated to 80° C. The mixture is stirred at a constant temperature for about 4 hours, cooled, acidified and the resulting precipitate is filtered dried and used in the next step.

Provenance & Evidence