Dichloromethane → 4-(2-Fluoro-5-((triisopropylsilyl)ethynyl)phenyl)morpholine

Participants

Reaction Steps

To a CEM snap top microwave vial (10 ml) equipped with a magnetic stir bar (3×10 mm) was added 4-(5-bromo-2-fluorophenyl)morpholine (390 mg, 1.50 mmol) in triethylamine (1.5 mL). Copper iodide (12 mg, 0.060 mmol), Tetrakis(triphenylphosphine) palladium (35 mg, 0.030 mmol) and triisopropylsilyl-acetylene (0.390 mg, 2.14 mmol) were added at room temperature. The reaction was capped and irradiated in a CEM Explorer microwave at 80° C. for 30 minutes then forced air-cooled. The crude material was loaded onto silica gel and chased with dichloromethane. Purification by chromatography (hexanes) afforded 540 mg of an oil (quant); 1H NMR (400 MHz, DMSO-d6) δ ppm 1.06-1.10 (m, 21H) 3.00 (t, J=4.6 Hz, 4H) 3.71 (t, J=4.6 Hz, 4H) 7.01 (dd, J=8.5, 2.0 Hz, 1H) 7.08 (ddd, J=4.9, 2.9, 2.6 Hz, 1H) 7.11-7.18 (m, 1H); MS (ES) m/z 362.2 [M+H]+

Provenance & Evidence