Benzoyl chloride → HCID 178473102, compound

Participants

Reaction Steps

To an ice-cold mixture of 4.0 g. (10 mMol) ethyl trans-4-[2-(4-chlorobenzenesulphonylamino)-ethyl]-cyclohexyloxyacetate, 50 ml. methylene chloride and 1.5 g. (15 mMol) triethylamine is added dropwise a mixture of 1.4 g. (10 mMol) benzoyl chloride and 30 ml. methylene chloride. The reaction mixture is maintained for 4 hours at reflux temperature, cooled, filtered and the filtrate washed with dilute hydrochloric acid and water. It is then dried with anhydrous sodium sulphate and evaporated After purification over silica gel/ cyclohexane/diethyl ether (2:1 v/v), there is obtained a yield of 1.7 g (67% of theory); m.p. 81°-82° C.

Provenance & Evidence