Synthesis of 5-nitropyridin-2-ylazo push-pull derivatives
A practical method has been devised for the synthesis of previously unknown push-pull azochromophores with 5-nitropyridin-2-yl acceptor moiety from 2-amino-5-nitro-1-oxypyridine.
Kreicberga,Jecs,Kampars
p. 29 - 34
(2008/12/22)
2-SULFILIMINOPYRIDINES AND THEIR OXIDATION TO 2-NITROPYRIDINES
Sulfilimines of the pyridine series with electron-acceptor substituents in the ring were synthesized.It was shown that their oxidation with trifluoroperacetic acid results in the corresponding nitropyridines.The limitations of the methods were indicated.
Rakitin, O. A.,Vlasova, O. G.,Khmel'nitskii, L. I.,Falyakhov, I. F.,Sobachkina, T. N.
p. 1281 - 1283
(2007/10/02)
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