Phosphorus oxychloride → HCID 86667598, compound

Participants

Reaction Steps

POCl3 (3.6 g, 23.4 mmol) was added to 20 ml of DMF in an ice bath. After 40 minutes, 2,2-dimethylpropionic acid 2-[(3-benzyloxyphenyl)methylamino]ethyl ester (8.0 g, 23.4 mmol) dissolved in DMF (10 ml) was added dropwise. The mixture was stirred for 16 hours. After an aqueous sodium acetate solution (20%, 100 ml) was added dropwise, the oily matter was subjected to extraction with ethyl acetate. Washing was performed with a saturated aqueous NaHCO3 solution (100 ml) and then with a saturated saline solution (100 ml). After drying over Na2SO4 and concentration, the residue was purified by silica gel chromatography to give a light yellow crystal (yield: 7.2 g (83.6%)).

Provenance & Evidence