Acta Cryst. (2009). E65, o1495  [ doi:10.1107/S1600536809020789 ]

Ethyl 2-(3-chloro-2-pyridyl)-5-oxopyrazolidine-3-carboxylate

H.-J. Tan, H.-B. He, M. Xia, X.-N. Zhang and H.-J. Zhu

Abstract: In the molecule of the title compound, C₁₁H₁₂ClN₃O₃, the five membered ring adopts an envelope conformation. In the crystal structure, intermolecular N-HO hydrogen bonds link the molecules into centrosymmetric dimers.

Online 6 June 2009

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