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Anhydrous Phosphazenium Fluorides as Sources for Extremely Reactive Fluoride Ions in Solution

Reinhard Schwesinger Prof. Dr.

E-mail address:rschwesi@chemie.uni‐freiburg.de

Chemisches Laboratorium, Institut für Organische Chemie und Biochemie der Universität, Freiburg, Albertstrasse 21, 79104 Freiburg, Germany, Fax: (+49) 761‐203‐8712

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Reinhard Link Dr.

Current address: CU‐Chemie Uetikon GmbH, Raiffeisenstrasse 4, 77933 Lahr, Germany

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Peter Wenzl Dr.

Current address: Fluka‐Chemie AG, Industrie‐Strasse 25, 9471 Buchs, SG, Switzerland

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Sebastian Kossek Dr.

Current address: Protiveris, 9700 Great Seneca Hwy, Rockville, MD 20850, USA

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First published: 19 December 2005
Cited by: 33

Abstract

Several peralkylated polyaminophosphazenium cations were evaluated for the generation of novel anhydrous F salts. Two of them have been characterized by X‐ray analysis and are particularly soluble, even in apolar aprotic solvents like benzene or THF, one of them even at −30 °C. Such solutions probably represent the most basic metal‐free and stable media known to date. Comparison of these fluorides with known F sources demonstrates that they are of unprecedented reactivity and selectivity in E2 elimination reactions.

Number of times cited: 33

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