反应详情

温度

0 °C

To a solution of 3-((4-bromo-1H-pyrazol-1-yl)methyl)benzoic acid (0.20 g, 0.711 mmol) in THF (3.5 mL) at 0° C. was added N-methylmorpholine (0.086 g, 0.854 mmol), and isobutyl chloroformate (0.107 g, 0.783 mmol) slowly. The reaction was stirred at 0° C. for 1.5 h and ammonium hydroxide (0.249 g, 7.11 mmol) was slowly added. The reaction was allowed to warm to room temperature where it stirred overnight. At the conclusion of this period, the reaction mixture was partitioned between DCM and water. The organic layer was separated, dried over anhydrous Na2SO4, filtered, and concentrated. The resulting residue was purified by flash chromatography (0-100% ethyl acetate:hexanes) to afford the title compound (0.188 g, 94%). LCMS, [M+H]+=280.0.

1. temperatureto warm to room temperature where it
2. stirringstirred overnight
3. customAt the conclusion of this period, the reaction mixture was partitioned between DCM and water
4. customThe organic layer was separated
5. dry with materialdried over anhydrous Na2SO4
6. filtrationfiltered
7. concentrationconcentrated
8. customThe resulting residue was purified by flash chromatography (0-100% ethyl acetate:hexanes)