Conclusions
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1.
A number of alkyl derivatives of 3-pyrazolidinone [(IIa), (IIb), (IIc), (IIIa). (IIIb), (IIIc), (IVa), (IVb), (IVc), (VIIIb), and (IXb)] and alkiodides of 1,1-dialkylpyrazolinium 3-oxides [(Xb) and (XIb)] were prepared and characterized for the first time.
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2.
The structure of the cyclic compounds as 1,1-dimethylpyrazolinium 3-oxides, which are isomers of the 2,2-dimethylhydrazides of the corresponding α, β-unsaturated acids, was proved.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 865–871, May, 1966.
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Zapevalova, N.P., Sokolova, T.A. Reactions of 1,1-disubstituted hydrazines with derivatives ofα,β- unsaturated acids Communication 2. Structure of 1,1-dimethylpyrazolinium 3-oxides [3-hydroxy-l,l-dimethyl-2-pyrazolinium hydroxide inner salts]. Russ Chem Bull 15, 827–832 (1966). https://doi.org/10.1007/BF00849380
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DOI: https://doi.org/10.1007/BF00849380