Diisopropylethylamine → tert-Butyl {3-[(2-morpholin-4-yl-5-nitrophenyl)ethynyl]phenyl}carbamate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A solution of 4-(2-bromo-4-nitrophenyl)morpholine (0.27 g, 0.95 mmol), tert-butyl (3-ethynylphenyl)carbamate, and bis(triphenylphosphine)palladium(II) chloride (67 mg, 95 μmol) in N,N-dimethylformamide (4.4 mL) was treated with N,N-diisopropylethylamine (0.21 mL, 1.2 mmol) and stirred at 80° C. for 16 h. The reaction mixture was diluted with ethyl acetate, washed with brine, dried over anhydrous sodium sulfate, filtered, and evaporated to give a crude residue. This material was purified by flash column chromatography to give the desired product (0.28 g, 70%) as a solid. LCMS for C23H26N3O5 (M+H)+: m/z=424.0.

Herkunft & Nachweise