Acta Crystallographica Section E. 2012;68(7):o2165-o2166 DOI 10.1107/S1600536812027274


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Journal Title: Acta Crystallographica Section E

ISSN: 1600-5368 (Print)

Publisher: International Union of Crystallography

LCC Subject Category: Science: Chemistry

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML



Le Tuan Anh
Truong Hong Hieu
Anatoly T. Soldatenkov
Nadezhda M. Kolyadina
Victor N. Khrustalev


Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 3 weeks


Abstract | Full Text

The title compound, C25H28N2O5, is a product of the Petrenko–Kritchenko condensation of N-acetylpiperidone with 1,5-bis(2-formylphenoxy)-3-oxapentane and ammonium acetate. The molecule comprises a fused pentacyclic system containing an aza-14-crown-3-ether macrocycle, two piperidone and two benzene rings. The aza-14-crown-3-ether ring adopts a bowl conformation. The dihedral angle between the benzene rings fused to the aza-14-crown-4-ether unit is 70.18 (4)°. The central piperidone ring has a boat conformation, whereas the terminal piperidone ring adopts a chair conformation. The conformation of the central piperidone ring is determined by two intramolecular N—H...O hydrogen bonds. In the crystal, molecules are linked by weak C—H...O interactions into chains along [010].