反应详情

温度

100 °C

To a mixture of (3-chloropyrazin-2-yl)methanol (200 mg, 1.4 mmol, 1 eq.), 1-isopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (393 mg, 1.67 mmol, 1.2 eq.), Pd(dppf)Cl2 (102 mg, 0.14 mmol, 0.1 eq.), and K2CO3 (580 mg, 4.2 mmol, 3 eq.) in a RB flask were added dioxane (6 mL) and water (2 mL). The mixture was heated at 100° C. for 1 h, cooled to rt, filtered, concentrated, and purified on silica gel using a mixture of EtOAc and hexanes as eluent to give (3-(1-isopropyl-1H-pyrazol-5-yl)pyrazin-2-yl)methanol (110 mg, 36%) as a yellow oil. LRMS (M+H+) m/z 219.1.

1. temperaturecooled to rt
2. filtrationfiltered
3. concentrationconcentrated
4. custompurified on silica gel using
5. additiona mixture of EtOAc and hexanes as eluent