Nitropyrazoles |
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| Authors: | I. L. Dalinger T. K. Shkineva S. A. Shevelev V. Kral Z. Arnold |
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| Affiliation: | (1) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913 Moscow, Russian Federation;(2) Institute of Organic Chemistry and Biochemistry of CSFR Academy of Sciences, 166 10 Prague 6 |
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| Abstract: | The double Vilsmeier formylation of theC-methyl group in pyrazole derivatives has been shown to occur when a nitro-group is in the adjacent position of the ring. A method for the synthesis ofC-(diformylmethyl)nitropyrazoles based on this reaction has been developed.For the previous communication, see Ref. 1; for Part 2, see Ref.2Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1273–1276, July, 1993. |
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| Keywords: | formylation trimethinium salts C-(diformylmethyl)nitropyrazoles |
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