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Updated: Jan 3, 2026

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
(E)-3-(2-Eth-oxy-phen-yl)-1-{4-[(2-fluoro-phen-yl)(4-fluoro-phen-yl)meth-yl]piperazin-1-yl}prop-2-en-1-one
Abstract:
In the title compound, C(28)H(28)F(2)N(2)O(2), the piperazine ring has a chair conformation with the pendant N-C bonds in equatorial orientations. The C=C double bond has an E conformation and the dihedral angle between the fluoro-benzene rings is 70.8 (3)°. In the crystal, mol-ecules are linked by C-H⋯O and C-H⋯F hydrogen bonds.
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