反应详情

A solution of 3,3-dimethyl-7-nitroisoindolin-1-one (Compound 148C, 100 mg, 0.48 mmol) in THF (5 mL), was treated with 60% NaH (58 mg, 1.44 mmol) and stirred for 15 minutes. Methanol (0.078 mL, 1.92 mmol) and iodomethane (0.12 mL, 1.92 mmol) were added to this solution and stirred at 50° C. overnight. Cold water (3 mL) was added, the reaction mixture was concentrated to remove THF and extracted with EtOAc (3×5 mL). The combined organic layer washed with brine, dried (Na2SO4) and concentrated to provide 70 mg of the title compound (66%). 1H NMR (CDCl3, 600 MHz): δ1.45 (s, 6H), 3.56 (s, 3H), 7.13 (dd, J=7.8, 84 Hz, 1H), 7.40 (d, J=7.8 Hz, 1H), 8.02 (d, J=8.4 Hz, 1H).

1. stirringstirred at 50° C. overnight
2. concentrationthe reaction mixture was concentrated
3. customto remove THF
4. extractionextracted with EtOAc (3×5 mL)
5. washThe combined organic layer washed with brine
6. dry with materialdried (Na2SO4)
7. concentrationconcentrated