Tetrafluoroboric acid → HCID 66803424, compound

Participants

Reaction Steps

A toluene (5 ml) suspension of (4aS,8aS)-2,2-dimethyldecahydroquinoxaline (200 mg, 1.19 mmol), 5-bromo-1-(triisopropylsilyl)-1H-indole-2-carbonitrile (493 mg, 1.31 mmol), Pd(OAc)2 (13.3 mg, 0.0594 mmol), tBu3P.HBF4 (17.2 mg, 0.0594 mmol), and t-BuONa (137 mg, 1.43 mmol) was stirred at 100° C. for 4 hours in a nitrogen atmosphere. Insoluble matter was filtered through celite, and the filtrate was concentrated. The obtained residue was purified by basic silica gel column chromatography (AcOEt/hexane) to obtain (4aS,8aS)-1-(2-cyano-1-(triisopropylsilyl)-1H-indol-5-yl) 3,3-dimethyldecahydroquinoxaline (430 mg, 78%) in a white amorphous solid form.

Provenance & Evidence