反应详情

温度

90 °C

To a solution of sodium hydride (93 mg, 3.882 mmol) in dioxane (4 mL) was added cyclopropylmethanol (280 mg, 3.882 mmol) dropwise. The solution was stirred for 30 minutes and then 5-amino-3-chloropyrazine-2-carbonitrile (300 mg, 1.941 mmol) was added and the reaction mixture heated at 90° C. for 14 hours. The reaction mixture was poured into aqueous HCl (1 M) and extracted with ethyl acetate. The aqueous layer was re-extracted with ethyl acetate. The combined organic layers were washed with brine, dried (Na2SO4) and concentrated to dryness to give the title compound (305 mg, 1.605 mmol, 83%) which was used in subsequent steps without further purification. LC-MS (3) Rt=1.49 min; m/z (ESI+) 191 (M+H+).

1. extractionextracted with ethyl acetate
2. extractionThe aqueous layer was re-extracted with ethyl acetate
3. washThe combined organic layers were washed with brine
4. dry with materialdried (Na2SO4)
5. concentrationconcentrated to dryness