Research in the field of furopyridines. 2. Synthesis and steric structure of 6-methyl-1-hetarylidene-3,4-dioxo[3,4-c]pyridines |
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| Authors: | I S Arustamova E A Kaigorodova V G Kul'nevich B I Ugrak |
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| Institution: | (1) Krasnodar Polytechnic Institute, 350720 Krasnodar;(2) N. D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, 117913 Moscow |
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| Abstract: | By condensation of 6-methyl-3,4-dioxo-1H-furo3,4-c]pyridine with heteroaromatic aldehydes, furfurylidene- and thenylidenefuropyridinediones have been obtained. By means of 1H NMR spectrometry using the nuclear Overhauser effect, it has been established that these compounds have the cis-s-cis and cis-s-trans conformations, respectively.For Communication 1, see 1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, Vol. 29, No. 5, pp. 633–638, May, 1993. |
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