[CH3:1][O:2][C:3]1[CH:11]=[CH:10][CH:9]=[C:8]([CH3:12])[C:4]=1[C:5](O)=[O:6].S(Cl)([Cl:15])=O>>[CH3:1][O:2][C:3]1[CH:11]=[CH:10][CH:9]=[C:8]([CH3:12])[C:4]=1[C:5]([Cl:15])=[O:6]A mixture of 1A (1.7 g, 10.2 mmol) and thionyl chloride (2 ml) is heated under reflux for 1 hour. The mixture is concentrated and the resulting benzoylchloride is used without further purification.
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