Acta Crystallographica Section E (Jul 2009)
Ethyl 2-(3-chloro-2-pyridyl)-5-oxopyrazolidine-3-carboxylate
Abstract
In the molecule of the title compound, C11H12ClN3O3, the five membered ring adopts an envelope conformation. In the crystal structure, intermolecular N—H...O hydrogen bonds link the molecules into centrosymmetric dimers.