期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 12, 期 2, 页码 438-445出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200500838
关键词
cations; elimination; fluorine; phosphazenes; phosphorus
Several peralkylated polyarninophosphazenium 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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