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Chelate-assisted synthesis of pyrazolylidene derivatives from cyanoacetic acid hydrazide and O-methyl lactims

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Abstract

Diphenylboron chelate of cyanoacetic acid hydrazide and O-methyl lactims were used to synthesize pyrrolidin-, piperidin-, and azepan-2-ylidene derivatives of 3-aminopyrazol-5-one.

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Correspondence to S. V. Baranin.

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Dedicated to Academician of the Russian Academy of Sciences Yu. N. Bubnov on the occasion of his 80th birthday.

Deceased.

Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2260–2263, October, 2014.

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Ruban, S.V., Potapova, T.V., Baranin, S.V. et al. Chelate-assisted synthesis of pyrazolylidene derivatives from cyanoacetic acid hydrazide and O-methyl lactims. Russ Chem Bull 63, 2260–2263 (2014). https://doi.org/10.1007/s11172-014-0732-2

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  • DOI: https://doi.org/10.1007/s11172-014-0732-2

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