Sulfuric Acid → HCID 10947012, compound

Participants

Reaction Steps

There was furnished a 300-ml four-necked flask equipped with a stirrer, condenser, and thermometer, which was charged with 90 g of 1,2-ethylene dichloride and 45 g (0.19 mol) of 1,2-dibromobenzene. While moderately passing nitrogen gas, 53.5 g (0.20 mol) of 30% fuming sulfuric acid was added dropwise, and reaction was effected at 70° C. for 2 hours. The reaction solution was cooled, followed by filtration and drying, obtaining 57 g of crude 3,4-dibromobenzenesulfonic acid.

Provenance & Evidence