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Ethyl 3-oxo-2-(2-phenyl­hydrazinyl­idene)butano­ate: a re-determination

By Satish Chandra Gupta, Deo Kumar Mandal, Asha Rani, Anup Sahay and Satya Murti Prasad


The previous crystallographic studies [Wang et al. (2005 ▶). Huaxue Yanjiu 16, 29–32; Wang et al. (2007 ▶). Youji Huaxue, 27, 524] of the title compound, C12H14N2O3, gave only the unit-cell dimensions and an R factor with no other details available: the full structure is presented here. The eth­oxy group is disordered over two orientations with refined occupancies of 0.642 (15):0.358 (15). The nine C atoms and two N atoms of the 1-phenyl-2-(propan-2-yl­idene)hydrazine segment of the mol­ecule are close to being coplanar, with a maximum deviation of 0.0779 (14) Å for the phenyl­amino N atom and an intra­molecular N—H⋯O hydrogen bond generates an S(6) ring. In the crystal, pairs of C—H⋯O hydrogen bonds link mol­ecules into inverson dimers, generating R 2 2(16) loops

Topics: Organic Papers
Publisher: International Union of Crystallography
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Provided by: PubMed Central

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  1. (1994). CAD-4 EXPRESS. Enraf–Nonius,
  2. Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) x y z Uiso*/Ueq Occ.
  3. (2007). Youji Huaxue, 27, 524. organic compounds o460 Gupta et al. doi:10.1107/S1600536811002200 Acta Cryst.