1-Bromo-3-chloropropane → 5-Chloro-2-(4-chlorophenyl)pentanoic acid

Reaction equation

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