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Updated: May 14, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
(1E,4E)-1,5-Bis[2-(trifluoro-meth-yl)phen-yl]penta-1,4-dien-3-one
Dong Ho Park1, V Ramkumar, P Parthiban
1Department of Biomedicinal Chemistry, Inje University, Gimhae, Gyeongnam 621 749, Republic of Korea.
Abstract:
In the title compound, C(19)H(12)F(6)O, a monoketone derivative of curcumin, both double bonds have a trans conformation. The mol-ecule is mostly planar with all C and O atoms essentially coplanar, with the exception of one benzene ring, which is tilted by 17.18 (1)° with respect to the plane of the remainder of the mol-ecule. The r.m.s. deviation from planarity of the coplanar section is 0.0097 Å. The crystal packing features weak C-H⋯O and C-H⋯F inter-actions.
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