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Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
2-Ethylphenyl acridine-9-carboxylate and 2,5-dimethylphenyl acridine-9-carboxylate
Artur Sikorski1, Karol Krzymiński, Antoni Konitz
1University of Gdańsk, Faculty of Chemistry, J. Sobieskiego 18, 80-952 Gdańsk, Poland.
Abstract:
The title compounds, 2-ethylphenyl acridine-9-carboxylate, C22H17NO2, (I), and 2,5-dimethylphenyl acridine-9-carboxylate, C22H17NO2, (II), form triclinic and monoclinic crystals, respectively. Related by a centre of symmetry, adjacent molecules of (I) are linked in the lattice via a network of C-H...pi and non-specific dispersive interactions. As a result, acridine moieties and independent phenyl moieties of (I) are parallel in the lattice. The molecules of (II), arranged in a 'head-to-tail' manner and related by a centre of symmetry, form pairs stabilized via C-H...pi interactions. These are linked in the crystal via dispersive interactions. Acridine and independent phenyl moieties lie parallel within the pairs, while adjacent pairs are perpendicular, forming a herring-bone pattern.
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