反应详情

温度

120 °C

Sodium tert-butoxide (269 mg, 2.80 mmol, 2.0 equiv) was added to a stirred solution/suspension of 2-bromo-4-(6,6-dimethyl-4-oxo-3-methyl-4,5,6,7-tetrahydro-indazol-1-yl)-benzonitrile (500 mg, 1.40 mmol, 1.0 eq.), 3,4,5-trimethoxyaniline (513 mg, 2.80 mmol, 2.0 eq.), palladium (II) acetate (16 mg, 0.07 mmol, 0.05 eq.), and 1,1′-bis(diphenylphosphino)ferrocene (78 mg, 0.14 mmol, 0.10 eq.) in 3.75 mL of toluene. The reaction vial was capped, and the reaction mixture was heated 20 minutes at 120° C. under microwave irradiation. The individual reaction mixtures were diluted with ethyl acetate, combined, and partitioned with water. The layers were separated, and the aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with brine, dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified on a Biotage System (SiO2, hexanes-ethyl acetate) to afford 4-(6,6-dimethyl-4-oxo-3-methyl-4,5,6,7-tetrahydro-indazol-1-yl)-2-(3,4,5-trimethoxyanilino)-benzonitrile (1.59 g, 82%) as a tan solid: LC/MS (m/z): [M+H]+ 461.9.

1. customThe reaction vial was capped
2. customThe individual reaction mixtures
3. custompartitioned with water
4. customThe layers were separated
5. extractionthe aqueous layer was extracted with ethyl acetate
6. washThe combined organic layers were washed with brine
7. dry with materialdried over sodium sulfate
8. filtrationfiltered
9. concentrationconcentrated in vacuo
10. customThe residue was purified on a Biotage System (SiO2, hexanes-ethyl acetate)