Аннотация:
The reaction of 4-dimethylamino-1,1,1-trifluorobut-3-en-2one with 3-arylpyrazole-5-diazonium salt in MeCN affords 7-aryl-3-(trifluoroacetyl)pyrazolo[5,1-c][1,2,4]triazines. The transformation of relative 5-diazopyrazoles leads to 4-hydroxy-1,4-dihydropyrazolo[5,1-c][1,2,4]triazine derivatives, while the reaction in acidic aqueous solution results in 4,4,4-trifluoro-3-oxo-2-(pyrazol-5-ylhydrazono)butanals.
Образец цитирования:
E. V. Sadchikova, D. L. Alexeeva, V. G. Nenajdenko, “Trifluoroacetyl substituted pyrazolotriazines: synthesis and pathways of formation”, Mendeleev Commun., 30:2 (2020), 180–182
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/mendc1140
https://www.mathnet.ru/rus/mendc/v30/i2/p180
Эта публикация цитируется в следующих 5 статьяx:
Mani Ramanathan, Ziad Moussa, “Transition-metal-free approaches to access N-heterocycles and valuable intermediates from aryldiazonium salts”, Org. Chem. Front., 2025
Elena V. Sadchikova, Nikolai A. Beliaev, Daria L. Alexeeva, Nikita E. Safronov, Nataliya P. Belskaya, “Non-aromatic azolo[5,1-c][1,2,4]triazines: a pot, atom and step economic (PASE) synthesis, mechanistic insight and fluorescence properties”, New J. Chem., 46:46 (2022), 22171
Nikita A. Kaminskiy, Ekaterina E. Galenko, Mariya A. Kryukova, Mikhail S. Novikov, Alexander F. Khlebnikov, “Reaction of α-Diazopyrroles with Enamines: Synthesis of Pyrrolo[2,1-c][1,2,4]triazines and α-(1,2,5-Triazapenta-1,3-dienyl)pyrroles”, J. Org. Chem., 87:15 (2022), 10485
S.M. Ivanov, Comprehensive Heterocyclic Chemistry IV, 2022, 29
Egor K. Voinkov, Roman A. Drokin, Evgeny N. Ulomsky, Oleg N. Chupakhin, Valery N. Charushin, Vladimir L. Rusinov, “Methods of Synthesis for the Azolo[1,2,4]Triazines”, Chem Heterocycl Comp, 56:10 (2020), 1254
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