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Updated: May 20, 2026

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
(4E)-N-[(2-Chloro-phen-yl)meth-oxy]-1,3-dimethyl-2,6-diphenyl-piperidin-4-imine
Abstract:
In the title compound, C(26)H(27)ClN(2)O, the piperidine ring has a chair conformation and all of the ring substituents at Csp(3) atoms occupy equatorial positions. The dihedral angle formed between the phenyl rings is 48.11 (9)°. The chloro-benzene ring occupies a position orthogonal to the meth-oxy(methyl-idene)amine residue [N-O-C-C torsion angle = -87.90 (15)°]. The conformation about the imine C=N bond [1.278 (2) Å] is E, and the chloro substituent is anti to the piperidine N atom. Helical supra-molecular chains along [010] are sustained by C-H⋯π inter-actions in the crystal packing.
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