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P405
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NFPA 704
1
2
0
6-Chloro-2-methyl-3-nitropyridine C화학적 특성, 용도, 생산
화학적 성질
Light yellow Cryst
용도
6-Chloro-2-methyl-3-nitropyridine has been used as a reactant for the synthesis of fluorine-containing pyridinealdoxime derivatives as treatment of organophosphorus nerve-agent poisoning.
제조 방법
A mixture of 2-oxo-5-nitro-6-methyl-1,2-dihydropyridine, phosphorous oxychloride, and phosphorous pentachloride was heated at 110° C for 2 hours, whereupon the reaction mixture was charged with an additional portion of phosphorous pentachloride and phosphorous oxychloride. The reaction was stirred for 1 hour and then poured into ice water. The brown solid was filtered and washed with cold water, to give 6-Chloro-2-methyl-3-nitropyridine (94%).