Benzene → 2-Fluoro-6-(trifluoromethyl)benzene-1-sulfonyl chloride

Reaction equation

[Br:1][c:2]1[c:3]([F:12])[cH:4][cH:5][cH:6][c:7]1[C:8]([F:9])([F:10])[F:11].[CH3:33][CH2:34][O:35][CH2:36][CH3:37].[Li:16].[O:13]=[S:14]=[O:15].[O:22]1[CH2:23][CH2:24][CH2:25][CH2:26]1.[S:17](=[O:18])(=[O:19])([Cl:20])[Cl:21].[cH:27]1[cH:28][cH:29][cH:30][cH:31][cH:32]1>>[c:2]1([S:17](=[O:18])(=[O:19])[Cl:20])[c:3]([F:12])[cH:4][cH:5][cH:6][c:7]1[C:8]([F:9])([F:10])[F:11]