Dimethylformamide → 2,3-Dichloro-N-[5-cyano-3-(3-pyridinylmethoxy)-2-pyrazinyl]benzenesulphonamide

Participants

Reaction Steps

N-[5-Bromo-3-(3-pyridinylmethoxy)-2-pyrazinyl]-2,3-dichlorobenzenesulphonamide (Example 34) (0.15 g), tetrakis(triphenylphosphine)palladium(0) (0.04 g) and zinc cyanide (0.03 g) in N,N-dimethylformamide (5.0 mL) was heated at 70° C. After 5 h, the mixture was diluted with ethyl acetate (30 mL) and washed with 5% aqueous citric acid (5 mL), dried (MgSO4) and evaporated. Chromatography on silica gel eluting with ethyl acetate/isohexane mixtures containing 1% acetic acid gave the title compound as a white solid (0.058 g).

Provenance & Evidence