[Cr](Cl)([O-])(=O)=O.[NH+]1C=CC=CC=1.[F:12][C:13]([F:25])([F:24])[C:14]1[CH:22]=[C:21]2[C:17]([CH:18]=[CH:19][CH:20]2[OH:23])=[CH:16][CH:15]=1.CCOCC>C(Cl)Cl>[F:12][C:13]([F:24])([F:25])[C:14]1[CH:22]=[C:21]2[C:17]([CH:18]=[CH:19][C:20]2=[O:23])=[CH:16][CH:15]=1To a solution of pyridinium chlorochromate (1.08 g, 5.0 mmol) in methylene chloride (15 mL) was added dropwise a solution of 6-(trifluoromethyl)-1H-inden-1-ol (500 mg, 2.498 mmol) in methylene chloride (10 mL). After being stirred for 14 h, ether (30 mL) was added, and the reaction mixture was filtered through silica gel. The filtrate was concentrated in vacuo. The crude material was chromatographed (10:1 hexane/EtOAc) to afford 200 mg (40%) of the product. LC-MS [M+1]=199.2.
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