Synthesis of 5H-naphtho[2,3-c]phenothiazine-8,13-diones from 1-arylthio-2-azidoanthraquinones |
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| Authors: | Klimenko L. S. Pritchina E. A. Gritsan N. P. |
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| Affiliation: | (1) N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Akad. Lavrent"eva, 630090 Novosibirsk, Russian Federation;(2) Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 ul. Institutskaya, 630090 Novosibirsk, Russian Federation;(3) Novosibirsk State University, 2 ul. Pirogova, 630090 Novosibirsk, Russian Federation |
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| Abstract: | Thermolysis of 1-arylthio-2-azidoanthraquinones in DMSO at 150 °C afforded substituted 5H-naphtho[2,3-c]phenothiazine-8,13-diones. These compounds were also formed upon photolysis of azides at 77 K and were prepared in quantitative yields by the reactions of 1-arylthio-2-azidoanthraquinones with KOH in DMSO at 20 °C. |
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| Keywords: | thermolysis photolysis cyclization under the action of a base 1-arylthio-2-azidoanthraquinones 5H-naphtho[2,3-c]phenothiazine-8,13-diones |
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