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THERMOLYSIS OF 3-AZIDO-4-ARYL(HETARYL)THIENO[2,3-b]PYRIDINES: 2,7-NAPHTHYRIDINES OR 1,4-DIAZEPINES?

Евгения А. Канищева, Вероника О. Бедарева, Владимир К. Василин, Татьяна А. Строганова, Геннадий Д. Крапивин
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Abstract


A series of tertiary 3-azido-N-phenylthieno[2,3-b]pyridine-2-carboxamides containing a phenyl or hetaryl moiety at position 4 were synthesized. The influence of the nature of the substituent on the direction of intramolecular cyclization with the participation of nitrene was studied. Novel pyrido[3',2':4,5]thieno[3,2-b][1,5]benzodiazepin-11-ones and benzo[c]thieno[2,3,4-ij][2,7]naphthyridines were synthesized.

Keywords


3-aminothieno[2,3-b]pyridines; annulated 2,7-naphthyridines; azides, 1,4-diazepines; heterocyclization; thermolysis.

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