反应详情

To a solution of m-tolyl acetic acid (2.0 g, 0.013 mol) in DMF (20 mL) were added N2O-dimethyl hydroxylamine hydrochloride (1.6 g, 0.016 mol), EDC (3.06 g, 0.016 mol), HOAt (2.17 g, 0.016 mol), and DIPEA (11.6 mL, 0.067 mol). The resulting solution was stirred at RT for 18 h then was diluted with EtOAc (200 mL) and washed with HCl 1M (100 mL), water (100 mL), sat. sol. NaHCO3 (100 mL), and brine (100 mL). The organic phase was dried over sodium sulfate and concentrated in vacuo to afford the title intermediate (2.2 g, 88%) as colorless oil used in the next step without further purification.

1. washwashed with HCl 1M (100 mL), water (100 mL), sat. sol. NaHCO3 (100 mL), and brine (100 mL)
2. dry with materialThe organic phase was dried over sodium sulfate
3. concentrationconcentrated in vacuo