methyl 2-(dimethylamino)benzoate

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of methyl 2-dimethylamino-benzoate (1.79 g, 10 mmol) in 2 M ammonia in methanol (20 mL) was heated at 80° C. in a sealed reaction vessel for 3 d. Upon cooling to room temperature, it was diluted with water. The product was extracted with diethyl ether. The ethereal extracts were washed with brine and dried over anhydrous magnesium sulfate. The solid was then filtered off, and the filtrate was concentrated in vacuo. Purification of the residue by flash chromatography (Biotage system, KP-Sil™ 32-63 μm, 60 Å silica gel) eluting with 20% ethyl acetate in hexanes yielded 2-dimethylamino-benzamide (85 m g, 5%). The product was extracted with diethyl ether The ethereal extracts were washed with brine dried over anhydrous magnesium sulfate The solid was then filtered off the filtrate was concentrated in vacuo Purification of the residue by flash chromatography (Biotage system, KP-Sil™ 32-63 μm, 60 Å silica gel) eluting with 20% ethyl acetate in hexanes