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Updated: Jun 2, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
3-[(E)-3-(4-Meth-oxy-phen-yl)prop-2-eno-yl]-1-(4-methyl-phen-yl)-5-phenyl-1H-pyrazole-4-carbonitrile
Abstract:
In the title compound, C(27)H(21)N(3)O(2), the non-H atoms of the meth-oxy-phenyl-acryloyl substitutent of the pyrazolyl ring are almost co-planar (r.m.s. deviation = 0.070 Å), and the mean plane is twisted by 18.7 (1)° with respect to the pyrazolyl ring. The phenyl and tolyl substituents are aligned at 48.9 (1) and 44.5 (1)° with respect to the pyrazolyl ring. Weak inter-molecular C-H⋯O and C-H⋯N hydrogen bonding is present in the crystal structure.
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