2-Chlorophenol → 3-(Diethylamino)phenol

関与物質

反応手順

32.1 g (0.25 mol) of o-chlorophenol were slowly added dropwise under nitrogen to a mixture of 20.5 g (0.5 mol) of 95% by weight pure crystalline sodium amide and 750 ml of diethylamine. The reaction mixture was refluxed under nitrogen for 72 h with stirring. The workup comprised hydrolysis with 100 ml of saturated aqueous ammonium chloride solution, distillative removal of excess diethylamine, neutralization with dilute hydrochloric acid up to a pH of 7.5, extraction of the residue with a total of 600 ml of methylene chloride, drying over sodium sulfate and concentrating of the organic phase. Thereafter the crude oil thus obtained (46.3 g) was distilled, which yielded 31.5 g (76%) of 3-diethylaminophenol (purity>96% (GC)).

情報源と証拠