Schwesinger R, Link R, Wenzl P, Kossek S. Anhydrous Phosphazenium Fluorides as Sources for Extremely Reactive Fluoride Ions in Solution.
Chemistry 2006;
12:438-45. [PMID:
16196062 DOI:
10.1002/chem.200500838]
[Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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 degrees 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.
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