Synthesis and reactivity of thieno[2,3-b]pyridine-2,3-diamines |
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| Authors: | M. M. Lipunov E. A. Kaigorodova L. D. Konyushkin S. I. Firgang G. D. Krapivin |
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| Affiliation: | (1) Kuban State Technological University, Krasnodar, 350072, Russia;(2) Kuban State Agricultural University, Krasnodar, 350044, Russia;(3) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991 |
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| Abstract: | ![]()
It has been established that the interaction of N1-(2-hydroxyphenylmethylthieno[2,3-b]pyrid-3-yl)arylamides with hydrazine hydrate leads to thieno[2,3-b]pyridine-2,3-diamines. It was shown that the reaction of the latter with acetylacetone and acetoacetic ester occurs regioselectively at the amino group in position 3 of the thiophene ring. __________ Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1400–1408, September, 2007. |
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| Keywords: | (Z)-3-(2-aminothieno[2,3-b]pyrid-3-ylamino)-1-R-2-buten-1-one N3-[(E)-1-arylmethylideneimino]thieno[2,3-b]pyrid-2-ylamine 2,3-dihydro-1H-imidazo[4′ ,5′ : 4,5]thieno[2,3-b]pyridine thieno[2,3-b]-pyridine-2,3-diamine ring-chain tautomerism |
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