FIELD: chemistry.
SUBSTANCE: meta-chlorobenzophenone is obtained by diazotization of 2-amino-5-chlorobenzophenone at room temperature. Diazotization is carried out in mixture of icy acetic and hydrochloric acids with application of water solution of sodium nitrate with the following processing of obtained salt of diazonium with water solution of sodium hypophosphite or copper protoxide in ethyl alcohol for 0.5-1 h.
EFFECT: method makes it possible to realise process at room temperature, reduce its duration and obtain meta-chlorobenzophenone with high output.
2 ex
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