Conclusions
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1.
A study was made of the reaction of aromatic diazo compounds with the 4-ethylidene derivatives of 1, 2-diphenyl-3, 5-dioxopyrazolidine and it was shown that the hydrogen atoms in the methyl group of the latter compounds exhibit a high lability in the given reaction.
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2.
The electronic and IR spectra were discussed, as well as the Chromatographic behavior of the coupling products, and it was assumed that they have a hydrazone structure.
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A. M. Khaletskii and B. L. Moldaver, Abstracts of Papers Delivered at the All-Union Conference (September, 1962) [in Russian], Izd-vo Rostovsk. Un-ta (1962), p. 24.
B. L. Moldaver, V. G. Yakutovich, and A. M. Khaletskii, Chemistry of Dicarbonyl Compounds (Abstracts of Papers) [in Russian], Riga (1966), p. 115.
B. L. Moldaver, A. M. Khaletskii, and V. G. Yakutovich, in: Chemistry of Heterocyclic Compounds, Vol.1, Nitrogen-Containing Heterocycles [in Russian], Zinatne, Riga (1967), p. 63.
V. G. Yakutovich, B. L. Moldaver, Yu. P. Kitaev, and Z. S. Titova, Izv. Akad. Nauk SSSR, Ser. Khim.,1968, 877.
K. Nakanishi, Infrared Spectra and Structure of Organic Compounds [Russian translation], Mir (1965), p. 45.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2086–2092, September, 1970.
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Yakutovich, V.G., Moldaver, B.L., Kitaev, Y.P. et al. Chemistry of pyrazolidine. Russ Chem Bull 19, 1959–1965 (1970). https://doi.org/10.1007/BF00849781
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DOI: https://doi.org/10.1007/BF00849781