3-Bromo-6-fluoro-2-methylpyridine
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3-Bromo-6-fluoro-2-methylpyridine
structure -
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CAS No:
375368-83-5
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Formula:
C6H5BrFN
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Chemical Name:
3-Bromo-6-fluoro-2-methylpyridine
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Synonyms:
Pyridine,3-bromo-6-fluoro-2-methyl-;3-Bromo-6-fluoro-2-methylpyridine
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CAS No:
Safety Information
IRRITANT
22-37/38-41
26-39
Xi,Xn
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
H315
3-Bromo-6-fluoro-2-methylpyridine Use and Manufacturing
5-Bromo-2-amino-6-methylpyridine (5g) was added to pyridine hydrogen fluoride (35 mL).The reaction was cooled to -20 ° C and then KNO 2 (2.7 g) was added.The reaction was continued for 4 hours after rising to room temperature.The reaction mixture was poured into 200 mL of ice water and extracted with dichloromethane (50 mL EtOAc).The extracts were combined, washed with 1N hydrochloric acid, and concentrated to give 5-bromo-2-fluoro-6-methylpyridine (4 g, yield 78percent).Stepl : To a solution of 5-Bromo-2-amino-6-methylpyridine (5g) was added to pyridine hydrogen fluoride (35 mL).The reaction was cooled to -20 C and then KNO 2 (2.7 g) was added.The reaction was continued for 4 hours after rising to room temperature.The reaction mixture was poured into 200 mL of ice water and extracted with dichloromethane (50 mL EtOAc).The extracts were combined, washed with 1N hydrochloric acid, and concentrated to give
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3-Bromo-6-fluoro-2-methylpyridine
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