Conversions of 7-aryl-7H-pyrazolo[3,4-d]-[1,2,3]triazin-4-ols by the action of phosphorus pentoxide, pentasulfide, and oxychloride
作者:B. M. Khutova、S. V. Klyuchko、A. O. Gurenko、A. N. Vasilenko、A. G. Balya、E. B. Rusanov、V. S. Brovarets
DOI:10.1007/s10593-012-1128-6
日期:2012.11
4-d][1,2,3]triazin-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-pyrazolo[3,4-d][1,3]oxazin-4-ones and 6-(5-amino-1-aryl-1H-pyrazol-4-yl)-1-aryl-1H,4H-pyrazolo[3,4-d][1,3]thiazine-4-thiones, respectively. Reaction with phosphorus oxychloride leads to 1-aryl-5-chloro-1H-pyrazole-4-carbonyl chlorides, from which the corresponding
7-芳基-7H-吡唑并[3,4- d ] [1,2,3]三嗪-4-醇与五氧化二磷或五硫化二磷的相互作用导致形成6-(5-氨基-1-芳基- 1H-吡唑-4-基)-1-芳基-1H,4H-吡唑并[3,4- d ] [1,3]恶嗪-4-酮和6-(5-氨基-1-芳基-1H-吡唑-4-基)-1-芳基-1H,4H-吡唑并[3,4- d ] [1,3]噻嗪-4-硫酮。与三氯氧化磷反应生成1-芳基-5-氯-1H-吡唑-4-羰基氯,从中合成相应的酰胺,酰肼和取代的1,3,4-恶二唑。