Cesium carbonate → N-[4-(4-Trifluoromethoxy-phenoxy)-phenyl]-methanesulfonamide

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-trifluoromethoxy-phenol (0.7 mL, 5.4 mmol) in NMP (6 mL) was added Cs2CO3 (1.76 g, 5.4 mmol). The slurry was degassed for 2 min and added N-(4-iodo-phenyl)-methanesulfonamide (0.80 g, 2.7 mmol) from Example 33, Step A, 2,2,6,6-tetramethylheptane-3,5-dione (0.056 mL, 0.27 mmol) and CuCl (0.134 g, 1.35 mmol) subsequently. The reaction mixture was heated to 110° C. under N2 overnight. The reaction was brought to the usual work-up and the crude material was purified by chromatography (20% EtOAc/hexanes). MS (EI) 348 (M+H)+.

Provenance & Evidence