Br[C:2]1[C:7]([O:8][CH3:9])=[CH:6][CH:5]=[CH:4][C:3]=1[O:10][CH3:11].[S:12](Cl)([Cl:15])(=[O:14])=[O:13]>>[CH3:11][O:10][C:3]1[CH:4]=[CH:5][CH:6]=[C:7]([O:8][CH3:9])[C:2]=1[S:12]([Cl:15])(=[O:14])=[O:13]2,6-Dimethoxybenzenesulfonyl chloride was prepared from 2-bromo-1,3-dimethoxybenzene according to the procedure in Example 1, Step 1. The reaction gave a mixture of sulfonyl chloride and another product as a white solid.
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