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Updated: May 22, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
(1Z,2E)-N'-{2-Chloro-1-methyl-2-[2-(4-methyl-phen-yl)hydrazin-1-yl-idene]ethyl-idene}-4-meth-oxy-benzohydrazide
Abstract:
The asymmetric unit of the title compound, C(18)H(19)ClN(4)O(2), contains two mol-ecules, in which the dihedral angles between the benzene rings are 43.60 (12) and 58.65 (13)°. The hydrazine N atoms are twisted slightly out of the planes of the tolyl and meth-oxy-benzene rings: the C-C-N-N and N-N-C-C torsion angles are 171.1 (2) and -174.4 (2)°, respectively, for one mol-ecule and -177.4 (2) and -170.6 (2)°, respectively, for the other. In the crystal, mol-ecules are linked by N-H⋯O and C-H⋯O hydrogen bonds into chains propagating along the b-axis direction.
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