Hydrochloric Acid → HCID 91354131, compound

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Reaction Steps

To a mixture of bicyclo[3.2.1]octane-2,4-dione (0.553 g, 4 mmol) in dry chloroform (12 ml) is added 4-dimethylaminopyridine (2.44 g, 20 mmol), and the mixture is stirred at room temperature until all the solid is dissolved. To this solution is then added dry toluene (8 ml), and 3,5-dimethylbiphen-4-yllead triacetate (0.5 M solution in dry chloroform, 10 ml, 5 mmol), and the mixture is heated under reflux for 1 hour. The reaction mixture is cooled to room temperature, acidified to pH=1 with 2N aqueous hydrochloric acid, filtered and the filtrate is extracted with dichloromethane. The organic extracts are combined, dried over anhydrous magnesium sulfate, filtered and the filtrate evaporated in vacuo. The residue is further purified by column chromatography on silica gel to give 3-(3,5-dimethylbiphen-4-yl)bicyclo[3.2.1]octane-2,4-dione as a white powder.

Provenance & Evidence