Reactions of 2-aryl-4-arylidene-4H-oxazol-5-ones with 3-amino-1,2,4-triazole, 5-aminotetrazole,and 2-aminobenzimidazole |
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Authors: | V. A. Chebanov S. M. Desenko S. A. Kuzmenko V. A. Borovskoy V. I. Musatov Yu. V. Sadchikova |
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Affiliation: | (1) Scientific and Technological Corporation Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 prosp. Lenina, 61001 Kharkov, Ukraine |
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Abstract: | The reactions of 3-amino-1,2,4-triazole, 5-aminotetrazole, and 2-aminobenzimidazole with 2-aryl-4-arylidene-4H-oxazol-5-ones (azlactones) were studied. The electron-releasing properties of the azole ring were demonstrated to influence the reaction pathway of azlactones with aminoazoles. The structures of the resulting compounds were established by 1H and 13C NMR spectroscopy using spin-spin decoupling and the nuclear Overhauser effect.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2730–2733, December, 2004. |
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Keywords: | aminoazoles 2-aryl-4-arylidene-4H-oxazol-5-ones N-[2-aryl-1-(azol-5-ylcarbamoyl)vinyl]aroylamides N-(7-aryl-5-oxo-4,5,6,7-tetrahydroazolo[1,5-a]pyrimidin-6-yl)aroylamides cyclocondensation NMR spectroscopy |
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