This article is cited in 16 papers

Stereoselective synthesis of N-unsubstituted pyrazolidines from 3-nitro-2-trichloromethyl-2H-chromenes and hydrazine hydrate

V. Yu. Korotaev^a, I. B. Kutyashev^a, V. Ya. Sosnovskikh^a, M. I. Kodess<sup>b

a</sup> Department of Chemistry, Ural Federal University, Ekaterinburg, Russian Federation
^b I. Ya. Postovsky Institute of Organic Synthesis, Urals Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation

Abstract: The reaction of 3-nitro-2-trichloromethyl-2H-chromenes with hydrazine hydrate in ethanol at room temperature results in 3,4-trans, 4,5-trans-3-(2-hydroxyaryl)-4-nitro-5-trichloromethylpyrazolidines in 56–73% yields; the structures of these compounds were established by ¹H NMR, 2D COSY and 2D NOESY spectra.

Language: English

DOI: 10.1016/j.mencom.2007.01.021

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