Water → HCID 68689588, compound

Participants

Reaction Steps

To a stirring degassed solution of N-(t-butoxycarbonyl)-(R)-1,3,4,10b-tetrahydro-9-bromo-7-trifluoromethyl-pyrazino[2,1-a]isoindol-6(2H)-one (54 mg, 0.12 mmol) in DME (1.2 mL) was added tetrakis(triphenylphosphine)palladium(0) (1.7 mg, 0.0015 mmol). After 15 min., cis-1-propenylboronic acid (31 mg, 0.37 mmol), potassium carbonate (17 mg, 0.12 mmol), and water (0.3 mL) were added. The reaction was heated to reflux for 3 h and then cooled to room temp. The reaction was diluted with brine and extracted with EtOAc (3×5 mL). The organic layers were combined, dried over Na2SO4, and conc. in vacuo to a yellow oil. The oil was purified by flash chromatography (silica gel, 0-50% EtOAc in hexanes) to give 42 mg of the desired product as a colorless oil. MS (ESI) 397 (M+H).

Provenance & Evidence