2-氯-5-氨基苯酚

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: Acetic anhydride (3.0 mL, 42.0 mmol) was added to a solution of 4-chloro-3-hydroxy aniline (4.0 g, 28 mmol) in acetic acid (20 mL), and the reaction was refluxed for 5 mins. The reaction mixture was cooled to room temperature and the product was solidified. It was filtered off and washed with water (10 mL) and dried to obtain the product 17a in 93% yield (4.8 g) as a creamy white solid. There was no need for further purification. the reaction was refluxed for 5 mins It was filtered off washed with water (10 mL) dried

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 5-amino-2-chlorophenol (1.0 g, 6.97 mmol) and 5-tert-butyl-3 isocyanatoisoxazole (1.16 g, 6.97 mmol) in toluene (40 mL) was heated at 70° C. overnight. It was purified by silica gel chromatography with 0-25% EtOAc/hexane as eluants to afford 1-(5-tert-butylisoxazol-3-yl)-3-(4-chloro-3-hydroxyphenyl)urea as solid. It was purified by silica gel chromatography with 0-25% EtOAc/hexane as eluants

反应条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 5-amino-2-chlorophenol (1.0 g, 6.97 mmol) and 5-tert-butyl-3isocyanatoisoxazole (1.16 g, 6.97 mmol) in toluene (40 mL) was heated at 70° C. overnight. It was purified by silica gel chromatography with 0-25% EtOAc/hexane as eluants to afford 1-(5-tert-butylisoxazol-3-yl)-3-(4-chloro-3-hydroxyphenyl)urea as solid. It was purified by silica gel chromatography with 0-25% EtOAc/hexane as eluants