2-Bromo-5-chloro-4-(trifluoromethyl)aniline
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2-Bromo-5-chloro-4-(trifluoromethyl)aniline
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CAS No:
863111-48-2
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Formula:
C7H4BrClF3N
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Chemical Name:
2-Bromo-5-chloro-4-(trifluoromethyl)aniline
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Synonyms:
2-Bromo-5-chloro-4-(trifluoromethyl)aniline;2-Bromo-5-chloro-4-(trifluoromethyl)benzenamine;2-Bromo-5-chloro-4-trifluoromethyl-phenylamine;2-Bromo-5-chloro-4-(trifluoromethyl)
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CAS No:
2-Bromo-5-chloro-4-(trifluoromethyl)aniline Use and Manufacturing
A mixture of 5-amino-2-chloro-4-nitrobenzotrifluoride (synthesized according to the method described in J. Org. Chem., 60, 18, 1995, 5838-5842, 24.9 g) and 48percent aqueous hydrogen bromide (400 ml) was ice-cooled. Sodium nitrite (12.9 g) was dissolved in a small amount of water and added dropwise thereto. The reaction mixture was stirred for 4 hr while warming from -5C° to 15C°, ice-cooled and alkalified with a 6N aqueous sodium hydroxide solution. The precipitated solid was collected by filtration and washed with water to give a brown solid. The solid was purified by silica gel column chromatography (elution solvent:ethyl acetate-hexane (1:50)) to give 5-bromo-2-chloro-4-nitrobenzotrifluoride (17.7 g, yield 56percent).
2-Bromo-5-chloro-4-(trifluoromethyl)aniline
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