Citric Acid → HCID 86619567, compound

Participants

Reaction Steps

Sodium hydride (0.55 g) is added at room temperature to a solution of 5-bromo-3-(2-chloro-phenyl)-pyrazin-2-ylamine (0.23 g) in DMF (10 mL). Subsequently 1-bromo-4-chlorobutane (0.21 g) is added and the mixture is stirred for 3 h. Citric acid (10%, 20 mL) is added and the mixture is extracted with ethyl acetate (3×50 mL). Organic phases were pooled, washed with sodium bicarbonate and brine, dried with Na2SO4 and the solvent was evaporated. The residue was purified by chromatography on silica gel with heptane/ethyl acetate 2:1 to yield 0.27 g of the title compound as a yellow oil, MS (ISP) 338.1, 340.0 (M+H)+.

Provenance & Evidence