Chlorosulfonic acid → HCID 15269533, compound

Participants

Reaction Conditions

Reaction Steps

7-Chloro-1-methyl-4-quinolone (6.9 g) and chlorosulphonic acid (14 ml) can be stirred and heated at 140° C. for 2 hours. The reaction mixture can be cooled to room temperature and carefully added dropwise to ice water (200 ml). The solid which forms can be collected, washed with water and dried in air to give the compound 7-chloro-1-methyl-4-oxo-1,4-dihydroquinoline-3-sulphonyl chloride, m.p. >300° C.

Provenance & Evidence