Potassium Formate → (1RS,2SR,6RS,7SR,8RS)-8-[2,6-bis(trifluoromethyl)pyridin-4-yl]-4-(2,4,6-trimethylphenyl)-10-oxatricyclo[5.2.1.02,6]decane-3,5-dione

Participants

Reaction Conditions

Reaction Steps

A mixture of (1RS,2SR,6RS,7SR)-4-(2,4,6-trimethylphenyl)-10-oxatricyclo-[5.2.1.02,6]dec-8-en-3,5-dione (400 mg, 1.4 mmol), 2,6-bis(trifluoromethyl)-4-chloropyridine (531 mg, 1.4 mmol), palladium acetate (16 mg, 0.07 mmol), 2′-dicyclohexylphosphino-2,6-dimethoxy-1,1′-biphenyl (67 mg, 0.14 mmol), potassium formate (353 mg, 4.2 mmol), tetrabutylammonium chloride (389 mg, 1.4 mmol) and copper iodide (53 mg, 0.28 mmol) in dry N,N-dimethylformamide (6 ml) are heated, at 150° C. for 30 minutes under microwave irradiation. Purification by preparative reverse-phase HPLC gives (1RS,2SR,6RS,7SR,8RS)-8-[2,6-bis(trifluoromethyl)pyridin-4-yl]-4-(2,4,6-trimethylphenyl)-10-oxatricyclo[5.2.1.02,6]decane-3,5-dione.

Provenance & Evidence