Nitrobenzene → 3-Nitrobenzenesulfonyl chloride

Participants

Reaction Conditions

Reaction Steps

123.1 g (1.0 mol) of nitrobenzene are allowed to run rapidly into 582.5 g (5.0 mol) of chlorosulfonic acid and 1 g of sulfamic acid at room temperature. The mixture is then heated to 105° C. and stirred at this temperature for 6 hours. For working up, the reaction mixture is dripped into ice water. The precipitated crystals are filtered off with suction and washed with water. 194.6 g of dry 3-nitrobenzenesulfonyl chloride having a melting point of 59°-61° C., corresponding to a yield of 87.8% of theory, are obtained.

Provenance & Evidence