4-Aminouracils and pyrimido[4,5-b]indolediones from 4-azidouracils |
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| Authors: | Vyacheslav V Lapachev Wolfgang Stadlbauer Thomas Kappe |
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| Institution: | (1) Abteilung für Organische Synthesechemie, Institut für Organische Chemie, Karl-Franzens-Universität Graz, A-8010 Graz, Österreich;(2) Present address: Institute of Organic Chemistry, 630090 Novosibirsk, USSR |
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| Abstract: | Azidouracils (3), which are obtained from barbituric acids (1), can easily be cyclized to pyrimido4,5-b]indoles (4) or converted into 4-aminouracils (6).Dedicated to Prof. Dr.E. Ziegler on the occasion of his 75th birthday. |
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| Keywords: | 4-Azidouracil 1H-Pyrimido[4 5-b]indole-2 4(3H 9H)-dione 4-Aminouracil 4-Phosphoranylideneaminouracil Cyclodehydrogenation Thermolysis |
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