Conversions of 7-aryl-7h-pyrazolo3,4-d-1,2,3triazin-4-ols by the action of phosphorus pentoxide, pentasulfide, and oxychloride

Khutova B.M.; Klyuchko S.V.; Gurenko A.O.Vasilenko A.N.Balya A.G.Rusanov E.B.Brovarets V.S.

首页> 外文期刊>Chemistry of heterocyclic compounds >Conversions of 7-aryl-7h-pyrazolo3,4-d-1,2,3triazin-4-ols by the action of phosphorus pentoxide, pentasulfide, and oxychloride

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Conversions of 7-aryl-7h-pyrazolo3,4-d-1,2,3triazin-4-ols by the action of phosphorus pentoxide, pentasulfide, and oxychloride

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摘要

The interaction of 7-aryl-7H-pyrazolo3,4-d1,2,3triazin-4-ols with phosphorus pentoxide or pentasulfide leads to the formation of 6-(5-amino-1-aryl-1H-pyrazol-4-yl)-1-aryl-1H,4H-pyrazolo3,4-d1,3 oxazin-4-ones and 6-(5-amino-1-aryl-1H-pyrazol-4-yl)-1-aryl-1H,4H-pyrazolo3,4- d1,3thiazine-4-thiones, respectively. Reaction with phosphorus oxychloride leads to 1-aryl-5-chloro-1H-pyrazole-4-carbonyl chlorides, from which the corresponding amides, hydrazides, and substituted 1,3,4-oxadiazoles were synthesized.

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来源
《Chemistry of heterocyclic compounds》 |2012年第8期|1251-1262|共12页
作者
Khutova B.M.; Klyuchko S.V.; Gurenko A.O.Vasilenko A.N.Balya A.G.Rusanov E.B.Brovarets V.S.;
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作者单位

Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, 1 Murmanska St., Kyiv 02660, Ukraine;

Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., Kyiv 02094, Ukraine;

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正文语种英语
中图分类杂环化合物;
关键词
Phosphorus oxychloride; Phosphorus pentasulfide; Phosphorus pentoxide; Pyrazolooxazines; Pyrazolothiazines; Pyrazolotriazines;

Conversions of 7-aryl-7h-pyrazolo3,4-d-1,2,3triazin-4-ols by the action of phosphorus pentoxide, pentasulfide, and oxychloride

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