Synthesis, Structure, and Properties of 1,3‐Diaryl‐7‐imino‐1,7‐dihydrobenzo[e][1,2,4]triazines: Products of Unexpected Conversion of Polyfluorinated Blatter Radicalsстатья
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Аннотация:Derivatives of the first substituted 7-imino-1,7-dihydrobenzo[e][1,2,4]triazines, namely 1-(2,3,5,6-tetrafluoropyridin-4-yl)-N,3-diphenyl-7-(phenylimino)-1,7-dihydrobenzo[e][1,2,4]triazin-6-amine and 1-(pentafluorophenyl)-N-phenyl-7-(phenylimino)-3-(2,3,4,5-tetrafluorophenyl)-1,7-dihydrobenzo[e][1,2,4]triazin-6-amine, were unexpectedly isolated as the only products in yields of about 20-30% after an attempt to obtain Blatter radicals from the corresponding amidrazones bearing polyfluorinated electron-withdrawing substituents. All new compounds were fully characterized, and their molecular and crystal structure was determined by single-crystal X-ray diffraction.