奈帕芬胺

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 12.7 g (0.05 mol) of 2-amino-3-benzoyl-phenylacetamide in 150 ml of acetonitrile is treated four times with 16 ml (0.2 mole) of 37% formalin, 6.4 g (0.1 mole) of sodium cyanoborohydride and 2 ml of glacial acetic acid with a 15 minute stirring period between each treatment. The mixture is finally poured into dilute sodium hydroxide and extracted three times with diethylether. The ether extracts are combined, dried over magnesium sulfate and concentrated. The product is isolated by column chromatography. extracted three times with diethylether dried over magnesium sulfate concentrated The product is isolated by column chromatography

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To an agitated solution of 9.7 g (0.032 mole) of 2-amino-3-benzoyl-α-(methylthio)-phenylacetamide in 100 ml of tetrahydrofuran was added 80 g of wet Raney nickel (washed 3 times with water and 3 times with tetrahydrofuran). After 10 minutes the mixture was filtered to remove Raney nickel and the filtrate concentrated under vacuum. The residue was crystallized from isopropyl alcohol to give 6.0 g (73%) of yellow needles, m.p. 178.5°-180.0° C. After 10 minutes the mixture was filtered to remove Raney nickel the filtrate concentrated under vacuum The residue was crystallized from isopropyl alcohol