Thionyl Chloride → HCID 22596745, compound

Participants

Reaction Conditions

Reaction Steps

A 1 liter reaction vessel was charged with 105.4 g of 4-(3-chlorophenyl)-6-[(4-chlorophenyl)hydroxy(1-methyl-1H-imidazol-5-yl)methyl]-1-methyl-2(1H)-quinolinone hydrochloric acid salt (compound (III) and 400 ml of N,N-dimethylimidazolidinone added at 22° C. The mixture was stirred vigorously for 15 minutes at 22° C. and became homogeneous. 32.1 ml of thionyl chloride was added over 10 minutes to the reaction mixture, the reaction temperature rising from 22° C. to 40° C. After addition of the thionyl chloride, the reaction mixture was cooled from 40° C. to 22° C. and stirred for three hours at the latter temperature to provide a solution of 4-(3-chlorophenyl)-6-[chloro-(4-chlorophenyl)(1-methyl-1H-imidazol-5-yl)methyl]-1-methyl-2(1H)-quinolinone (compound (IV).

Provenance & Evidence