2-氨基-6-溴-4-甲氧基苯酚

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 21, from 4-methoxy-2-methylbenzoic acid, and 2-amino-6-bromo-4-methoxyphenol, and was obtained as a light purple solid, m.p. 120-135° C.; MS m/e 320 (M+H)+. was obtained as a light purple solid, m.p. 120-135° C.

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 21, from 3,5-difluoro-4-methoxybenzoic acid, and 2-amino-6-bromo-4-methoxyphenol, and was obtained as a white solid, m.p. 270-272° C.; MS m/e 340 (M−H)+. was obtained as a white solid, m.p. 270-272° C.

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 20, Step c, from 2-amino-6-bromo-4-methoxyphenol and 4-methoxy-3-trifluoromethyl benzoyl chloride. The product was obtained as an off-white solid, m.p. 205-208° C.; MS m/e 622 (M+H)+. The product was obtained as an off-white solid, m.p. 205-208° C.

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 20, Step c, from 2-amino-6-bromo-4-methoxyphenol and 4-methoxy-3-trifluoromethyl benzoyl chloride. The product was obtained as an off-white solid, m.p. 205-208° C.; MS m/e 622 (M+H)+. The product was obtained as an off-white solid, m.p. 205-208° C.

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

实验步骤: A mixture of 3-fluoro-4-methoxybenzoic acid (39.0 g, 229 mmol), thionyl chloride (100 mL), and N,N-dimethylformamide (0.5 mL) was refluxed for 1 h. The volatiles were removed under vacuum. The solids were taken in benzene (twice) and the volatiles were removed under vacuum. The residue was dissolved in CH2Cl2 (100 mL) and added into a cold (0° C.) mixture (mechanically stirred) of 2-amino-6-bromo-4-methoxyphenol (20.0 g, 91.7 mmol) and CH2Cl2 (150 mL). Anhydrous pyridine (37.0 mL, 468.5 mmol) was added dropwise into the new mixture. During the pyridine addition a precipitate was formed. The mixture was stirred for 30 min and then ethyl ether (250 mL) was added. The precipitated solids were filtered off and washed with ethyl ether. The solids were taken in water and stirred for 20 min. The solids were then filtered off and dried to give an off-white solid (46.5 g, 97% yield, m.p. 184-186° C.); MS m/e 520 (M−H)+. was refluxed for 1 h The volatiles were removed under vacuum were removed under vacuum The residue was dissolved in CH2Cl2 (100 mL) added into a cold (0° C.) mixture ( was formed The precipitated solids were filtered off washed with ethyl ether stirred for 20 min The solids were then filtered off dried

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

实验步骤: Raney/Ni (2.5 g) was added into a solution of 2-bromo-4-methoxy-6-nitrophenol (8.8 g, 35.5 mmol) in EtOAc (100 mL). The mixture was shaken in a Parr apparatus under hydrogen at 25 psi for 2.5 h. The reaction mixture was filtered through celite and concentrated under vacuum to give a gray solid (7.4 g, 96% yield; 95-97° C.); MS m/e 218 (M+H)+. The reaction mixture was filtered through celite concentrated under vacuum to give a gray solid (7.4 g, 96% yield; 95-97° C.)

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 21, from 4-methoxy-2-methylbenzoic acid, and 2-amino-6-bromo-4-methoxyphenol, and was obtained as a light purple solid, m.p. 120–135° C.; MS m/e 320 (M+H)+. was obtained as a light purple solid, m.p. 120–135° C.

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 21, from 3,5-difluoro-4-methoxybenzoic acid, and 2-amino-6-bromo-4-methoxyphenol, and was obtained as a white solid, m.p. 270–272° C.; MS m/e 340 (M−H)+. was obtained as a white solid, m.p. 270–272° C.

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 21, from 3,5-difluoro-4-methoxybenzoic acid, and 2-amino-6-bromo-4-methoxyphenol, and was obtained as a white solid, m.p. 270–272° C.; MS m/e 340 (M−H)+. was obtained as a white solid, m.p. 270–272° C.

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 20, Step c, from 2-amino-6-bromo-4-methoxyphenol and 4-methoxy-3-trifluoromethyl benzoyl chloride. The product was obtained as an off-white solid, m.p. 205–208° C.; MS m/e 622 (M+H)+. The product was obtained as an off-white solid, m.p. 205–208° C.

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

实验步骤: The title compound was prepared in substantially the same manner as described in Example 20, Step c, from 2-amino-6-bromo-4-methoxyphenol and 4-methoxy-3-trifluoromethyl benzoyl chloride. The product was obtained as an off-white solid, m.p. 205–208° C.; MS m/e 622 (M+H)+. The product was obtained as an off-white solid, m.p. 205–208° C.

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

实验步骤: A mixture of 3-fluoro-4-methoxybenzoic acid (39.0 g, 229 mmol), thionyl chloride (100 mL), and N,N-dimethylformamide (0.5 mL) was refluxed for 1 h. The volatiles were removed under vacuum. The solids were taken in benzene (twice) and the volatiles were removed under vacuum. The residue was dissolved in CH2Cl2(100 mL) and added into a cold (0° C.) mixture (mechanically stirred) of 2-amino-6-bromo-4-methoxyphenol (20.0 g, 91.7 mmol) and CH2Cl2 (150 mL). Anhydrous pyridine (37.0 mL, 468.5 mmol) was added dropwise into the new mixture. During the pyridine addition a precipitate was formed. The mixture was stirred for 30 min and then ethyl ether (250 mL) was added. The precipitated solids were filtered off and washed with ethyl ether. The solids were taken in water and stirred for 20 min. The solids were then filtered off and dried to give an off-white solid (46.5 g, 97% yield, m.p. 184–186° C.); MS m/e 520 (M−H)+. was refluxed for 1 h The volatiles were removed under vacuum were removed under vacuum The residue was dissolved in CH2Cl2(100 mL) added into a cold (0° C.) mixture ( was formed The precipitated solids were filtered off washed with ethyl ether stirred for 20 min The solids were then filtered off dried