反应详情

To a stirred suspension of sodium hydride (11.0 g, 230 mmol of a 50% oil dispersion) in dimethylformamide (250 ml), under nitrogen, was added, dropwise, 2-aminophenol (25.0 g, 230 mmol) dissolved in dimethylformamide (125 ml). After complete addition, the reaction was stirred at ambient temperature for 1 hour, and then it was cooled to 5° C. (ice bath). 3-Chloro-1-bromopropane (36.2 g, 230 mmol) in dimethylformamide (50 ml) was added, dropwise, so that the temperature did not go above 8° C. The reaction was stirred for 4 hours and then permitted to stand at ambient temperature for 16 hours. The reaction was poured into water and extracted with ethyl acetate. The ethyl acetate was washed (water), dried (MgSO4), and the solvent concentrated to afford 25.4 g of a reddish, dark oil. About 12.0 g of the oil was chromatographed on HPLC columns. Concentration of the largest fractions gave 5.4 g of 2-(3-chloropropoxy) analine as an oil.

1. additionunder nitrogen, was added
2. additionAfter complete addition
3. temperatureit was cooled to 5° C. (ice bath)
4. customdid not go above 8° C
5. stirringThe reaction was stirred for 4 hours
6. waitto stand at ambient temperature for 16 hours
7. extractionextracted with ethyl acetate
8. washThe ethyl acetate was washed (water)
9. dry with materialdried (MgSO4)
10. concentrationthe solvent concentrated
11. customto afford 25.4 g of a reddish, dark oil
12. customAbout 12.0 g of the oil was chromatographed on HPLC columns
13. customConcentration of the largest fractions gave 5.4 g of 2-(3-chloropropoxy) analine as an oil