2-Methoxybenzoic acid → 2-Methoxybenzoyl chloride

Participants

Reaction Steps

A mixture of 2-methoxybenzoic acid (45.6 g, 0.3 mol), thionyl chloride (53.5 g, 33 ml, 0.45 mol) and dimethylformamide (two drops) was refluxed for an hour. Excess thionyl chloride was then distilled off under reduced pressure. Benzene (50 ml) was added to the residue and the solvent was distilled off until the weight of the residue remained unchanged (about 51 g).

Provenance & Evidence