反应详情

To tert-butyl N-(3-benzyloxy-2-nitrophenyl)-N-ethylcarbamate (3.30 g) was added 4N hydrogen chloride-ethyl acetate solution (15 ml) under ice-cooling, and the mixture was stirred for 10 minutes at the same temperature and then for 30 minutes at ambient temperature. The solvent was removed in vacuo, saturated sodium bicarbonate solution was added to the residue, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and brine, dried over magnesium sulfate and evaporated in vacuo to give 3-benzyloxy-N-ethyl-2-nitroaniline (2.29 g).

1. temperaturecooling
2. waitfor 30 minutes at ambient temperature
3. customThe solvent was removed in vacuo, saturated sodium bicarbonate solution
4. additionwas added to the residue
5. extractionthe mixture was extracted with ethyl acetate
6. washThe organic layer was washed with water and brine
7. dry with materialdried over magnesium sulfate
8. customevaporated in vacuo