Fused polycyclic nitrogen-containing heterocycles 14. Intramolecular cyclization of 4-azidocarbonyl-2,5-diphenylthiazole. New route to isoquinoline derivatives |
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| Authors: | V. A. Mamedov I. Z. Nurkhametova A. T. Gubaidullin I. Kh. Rizvanov I. A. Litvinov Ya. A. Levin |
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| Affiliation: | (1) A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center, Russian Academy of Sciences, 8 ul. Akad. Arbuzova, 420088 Kazan, Russian Federation |
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| Abstract: | Thermolysis of 2,5-diphenylthiazole-4-carboxylic acid azide is accompanied by intramolecular cyclization to form 2-phenyl-4-H-thiazolo[4,5-c]isoquinolin-5-one through intermediate 2,5-diphenylthiazol-4-yl isocyanate.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 436–439, February, 2005. |
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| Keywords: | 2,5-diphenylthiazole-4-carboxylic acid Curtius rearrangement X-ray diffraction analysis thiazolo[4,5-c]isoquinoline |
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