Potassium Carbonate → (S)N-(1-Benzyl-6-phenyl-1,2,3,4-tetrahydroquinolin-3-yl)-benzene-sulfonamide

Participants

Reaction Conditions

Reaction Steps

The title compound was also prepared using the following procedures: To a solution of 87C (510 mg, 1.11 mmol) in THF/MeOH (2:1, 15 mL) was added phenylboronic acid (272 mg, 2.22 mmol), followed by K2CO3 (613 mg, 4.44 mmol) and PXPd (30 mg, 0.056 mmol). The reaction mixture was stirred at 60° C. for 2 h, then additional amount of phenylboronic acid (54 mg, 0.44 mmol) and PXPd (16 mg, 0.028 mmol) were added. After 2 h at 60° C., same amount of phenylboronic acid and PXPd were added again to the reaction mixture to push completion of the reaction. After stirring at 60° C. for one more hour, the reaction was allowed to cool to RT and concentrated. The residue was partitioned between water and CH2Cl2, and the aqueous phase extracted with CH2Cl2 (50 mL×2). The combined organics were washed with brine, dried (Na2SO4) and concentrated. The residue was purified using chromatography (silica gel) eluting with EtOAc/hexane (0-60%) to afford the title compound (260 mg, 51%) as a white solid.

Provenance & Evidence