Thionyl Chloride → HCID 21187853, compound
Reaction equation
[C:1]([O:9][C:10]1[CH:11]=[C:12]([S:18]([OH:21])(=O)=[O:19])[CH:13]=[CH:14][C:15]=1[O:16][CH3:17])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.S(Cl)([Cl:24])=O>C1(C)C=CC=CC=1>[C:1]([O:9][C:10]1[CH:11]=[C:12]([S:18]([Cl:24])(=[O:21])=[O:19])[CH:13]=[CH:14][C:15]=1[O:16][CH3:17])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 3-benzoyloxy-4-methoxybenzenesulfonic acid (7.69 g) in dry toluene (70 mL) is treated with thionyl chloride (9 mL), and the mixture is heated at reflux for 6 hours. Concentration gives 3-benzoyloxy-4-methoxybenzenesulfonyl chloride (8.4 g), in the form of a brown oil.
Workup
- temperaturethe mixture is heated