反应详情

温度

85 °C

To a mixture of 196 (0.57 g, 2.05 mmol), Zn(CN)2 (264 mg, 2.25 mmol) in NMP (6 mL) under an argon atmosphere was added (Ph3P)4Pd(0) (356 mg, 0.31 mmol). The mixture was heated at 85° C. overnight, cooled, and partitioned between EtOAc (300 mL) and H2O (50 mL). The organic layer was separated and washed with brine, dried (MgSO4) and concentrated in vacuo. The residue was purified by SiO2 chromatography eluting with 1% MeOH/DCM to afford 430 mg (75%) of 1-(tetrahydro-2H-pyran-2-yl)-1H-indazole-4-carbonitrile (198) as yellow solid: MS (ESI) m/z=228 [M+1]+.

1. temperaturecooled
2. custompartitioned between EtOAc (300 mL) and H2O (50 mL)
3. customThe organic layer was separated
4. washwashed with brine
5. dry with materialdried (MgSO4)
6. concentrationconcentrated in vacuo
7. customThe residue was purified by SiO2 chromatography
8. washeluting with 1% MeOH/DCM