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Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
A triclinic polymorph of (E)-2-(4-iso-butyl-phen-yl)-N'-[1-(4-nitro-phen-yl)ethyl-idene]propano-hydrazide
B C Manjunath1, S Madan Kumar, A C Vinayaka
1Department of Studies in Physics, Manasagangotri, University of Mysore, Mysore, 570 006, India.
Abstract:
The asymmetric unit of the triclinic polymorph of the title compound, C21H25N3O3, consists of two mol-ecules, whereas for the monoclinic polymorph Z' = 1 [Fun et al. (2009 ▶). Acta Cryst. E65, o445]. The two mol-ecules exhibit an E configuration with respect to the C=N bond. The mol-ecules are linked into dimers by N-H⋯O and C-H⋯O hydrogen bonds forming R 2 (2)(8) ring motifs. In addition, π-π inter-actions occur between nitro-phenyl groups [minimum centroid-centroid distance 3.940 (2) Å], stacking the molecules along the ac plane.
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