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Updated: Aug 22, 2025

Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
1-[5-(3,5-Di-meth-oxy-phen-yl)-3-(2-meth-oxy-phen-yl)-4,5-di-hydro-1H-pyrazol-1-yl]ethanone
1Department of Applied Chemistry, Dongduk Women's University, Seoul 136-714, Republic of Korea.
Abstract:
In the title compound, C20H22N2O4, two benzene rings bearing meth-oxy substituents are connected by a central acetyl-pyrazoline ring: the dihedral angle between the benzene rings is 83.7 (1)°. In the crystal, pairwise C-H⋯O hydrogen bonds generate inversion dimers and additional weak C-H⋯O inter-actions link the dimers into chains propagating along the c-axis direction.
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