反应详情

温度

60 °C

A solution of 1,1-Dimethylethyl (3-hydroxyphenyl)carbamate (7.05 g, 33.7 mmol) in THF (20 mL) was added dropwise to a suspension of NaH (60% dispersion in oil, 1.34 g, 33.7 mmol) in THF (50 mL). The product of Step 1 (12.0 g, 33.7 mmol) in DMF (100 mL) was then added and the mixture was heated to 60° C. overnight. The reaction mixture was then cooled, poured into H2O and extracted with EtOAc. The combined extracts were washed with brine, dried (MgSO4), filtered and the filtrates were concentrated to give the title compound as a yellow solid (16.4 g, 92%) which was used without purification. MS (ES+) m/e 529 [M+H]+.

1. temperatureThe reaction mixture was then cooled
2. extractionextracted with EtOAc
3. washThe combined extracts were washed with brine
4. dry with materialdried (MgSO4)
5. filtrationfiltered
6. concentrationthe filtrates were concentrated