反应详情

A solution of 4-(2-aminophenylamino)-2-chloro-2′-methylbenzophenone (305 mg, 1.0 mmol) and hexanoyloxymethyl 4-nitrophenyl carbonate (Compound 207) (3.3 g, 10 mmol) in DMF (50 ml) was added 1-hydroxybenzotriazole (270 mg, 2.0 mmol) followed by N-ethyl di-iso-propylamine (0.18 ml, 1.05 mmol). The reaction mixture was stirred at room temperature. After 72 hours, the reaction mixture was poured into ice/water and extracted with diethylether. The etheral extracts were washed with a saturated sodium carbonate solution, water, and brine and dried over anhydrous sodium sulphate. Filtration and concentration in vacuo afforded the crude product. This was further purified by chromatography using Et2O/hexane 2:1 as eluent.

1. extractionextracted with diethylether
2. washThe etheral extracts were washed with a saturated sodium carbonate solution, water, and brine
3. dry with materialdried over anhydrous sodium sulphate
4. filtrationFiltration and concentration in vacuo