Benzaldehyde → 3-Bromobenzaldehyde

Participants

Reaction Steps

A process which comprises reacting one molar proportion of benzaldehyde with about 0.9-1.2 molar proportions of bromine chloride in the presence of about 1.1-2.2 molar proportions of aluminum chloride and about 0.3-0.9 mol of dibromomethane per mol of aluminum chloride under substantially anhydrous conditions at a temperature in the range of about 40°-95° C. so as to form 3-bromobenzaldehyde, the components of the reaction mixture being combined by gradually adding the bromine chloride to a dibromomethane slurry of the benzaldehyde and aluminum chloride.

Provenance & Evidence