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Title: Unexpected result of thiophosphorylation of 6-aminopyrano[2,3-c]pyrazole-5-carbonitrile derivative
Authors: Dotsenko, V. V.
Доценко, В. В.
Aksenov, N. A.
Аксенов, Н. А.
Aksenova, I. V.
Аксенова, И. В.
Keywords: 1,2-oxaphosphinines;Phosphorus(V) sulfide;Pyrano[2,3-c]pyrazoles;Thiophosphorylation
Issue Date: 2019
Publisher: Pleiades Publishing
Citation: Dotsenko, V.V., Dushenko, V.A., Aksenov, N.A., Aksenova, I.V., Netreba, E.E. Unexpected Result of Thiophosphorylation of 6-Aminopyrano[2,3-c]pyrazole-5-carbonitrile Derivative // Russian Journal of General Chemistry. - 2019. - Volume 89. - Issue 9. - Pages 1752-1759
Series/Report no.: Russian Journal of General Chemistry
Abstract: The reaction of 6-amino-3-methyl-4-(2,4-dichlorophenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile with phosphorus sulfide in boiling pyridine unexpectedly leads to the formation of a not previously described heterocyclic system—[1,2]oxaphosphinino[6,5-c]pyrazole derivative. Structure of the obtained compound was proved using 2D NMR spectroscopy and X-ray diffraction analysis
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