反应详情

To a mixture of 2-(5-formyl-isoxazol-3-yl)-pyridine (3 gm) in THF (30 ml) was added methyl magnesium iodide (19 ml, 1.4 M solution in THF) at 0° C. over a period of 15 minutes. The reaction was stirred for 1.5 h and monitored by TLC. The reaction was quenched by addition of aqueous ammonium chloride solution (20 ml) and extracted with ethyl acetate (100 ml×2). Combined organic layers was washed with water and evaporated under vacuum to provide 1.9 gm crude mass, which was purified by using silica gel column chromatography to provide a title compound in 1.0 gm quantity (42%) as a solid.

1. customThe reaction was quenched by addition of aqueous ammonium chloride solution (20 ml)
2. extractionextracted with ethyl acetate (100 ml×2)
3. washCombined organic layers was washed with water
4. customevaporated under vacuum
5. customto provide 1.9 gm crude mass, which
6. customwas purified