反应详情

To a solution of tert-butyl 2-hydroxyimino-3-phenyliminobutyrate (1.0 g) in acetone (10 ml) was added potassium carbonate (0.63 g) and dimethyl sulfate (0.43 ml) under ice-cooling. The mixture was stirred at the same temperature for 30 minutes and stirred at ambient temperature for 4 hours. The resulting suspension was poured into ice-water and extracted with diisopropyl ether. The organic layer was washed with water, dried over magnesium sulfate, and evaporated in vacuo. The residual oil was subjected to column chromatography on silica gel to give tert-butyl 2-methoxyimino-3-phenyliminobutyrate (0.68 g).

1. temperaturecooling
2. stirringstirred at ambient temperature for 4 hours
3. extractionextracted with diisopropyl ether
4. washThe organic layer was washed with water
5. dry with materialdried over magnesium sulfate
6. customevaporated in vacuo