title: Synthesis of new pyridines with oligocations and oxygen nucleophiles.
abstract: Nucleophilic substitution of 4-(dimethylamino)pyridine on pentachloropyridine yielded pentakis(pyridine-2,3,4,5,6-pentayl)pyridinium, tris-(3,5-dichloropyridine-2,4,6-triyl)pyridinium, or (tetrachloropyridin-4-yl)pyridinium depending on the reaction conditions. Nucleophilic substitution with water, hydroxides, and alcoholates resulted in new betaines and highly substituted pyridines. [structure: see text]
authors.affiliation: Technische Universität Clausthal, Institut für Organische Chemie, Leibnizstrasse 6, D-38678 Clausthal-Zellerfeld, Germany. schmidt@ioc.tu-clausthal.de
authors.forename: Andreas
authors.initials: A
authors.lastname: Schmidt
authors.forename: Thorsten
authors.initials: T
authors.lastname: Mordhorst
authors.forename: Tobias
authors.initials: T
authors.lastname: Habeck
mesh_terms: D002412:Cations; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D010100:Oxygen / Q000737:chemistry*; D011108:Polymers; D011725:Pyridines / Q000138:chemical synthesis*
chemical_list: D002412:Cations; D007202:Indicators and Reagents; D011108:Polymers; D011725:Pyridines; D010100:Oxygen