Chlorosulfonic acid → HCID 21187901, compound
Reaction equation
[C:1]([O:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[O:16][CH3:17])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[S:19]([OH:22])(=[O:21])=[O:20]>ClCCl>[C:1]([O:9][C:10]1[CH:15]=[C:14]([S:19]([OH:22])(=[O:21])=[O:20])[CH:13]=[CH:12][C:11]=1[O:16][CH3:17])(=[O:8])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 2.5 °C
Procedure
A stirred solution of 2-methoxyphenyl benzoate (10 g) in dichloromethane (100 mL) from 0-5° C. is treated dropwise with chlorosulfonic acid (2.9 mL) and the solution is then stirred for 3 hours from 0-5° C. The precipitate which forms is filtered off, washed with cold dichloromethane, and dried in vacuo, to give 3-benzoyloxy-4-methoxybenzenesulfonic acid (11.45 g), in the form of a white solid, m.p. 139-140° C.