Polyfluoroorganoboron‐Oxygen Compounds. 5 Feasible Routes to Perfluoroalkyltrimethoxyborates M[CnF2n+1B(OMe)3] (n ≥ 3) |
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| Authors: | Nicolay Yu Adonin Vadim V Bardin Hermann‐Josef Frohn Prof Dr |
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| Institution: | 1. Duisburg/Germany, Department of Chemistry, Inorganic Chemistry, University of Duisburg‐Essen;2. Novosibirsk/Russia, N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS;3. Duisburg/Germany, Department of Chemistry, Inorganic Chemistry, University of Duisburg‐EssenFachbereich Chemie der Universit?t, Lotharstr. 1, D‐47048 Duisburg, Fax: (+49)2 03‐379 22 31 |
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| Abstract: | A well applicable preparative method for lithium perfluoroalkyltrimethoxyborates, LiCnF2n+1B(OMe)3] (n = 3, 4, 6), was elaborated which is based on the reaction of B(OMe)3 with CnF2n+1Li generated from CnF2n+1H and t‐BuLi. Alternative perfluoroalkylation reactions of B(OMe)3 with perfluoropropyllithium generated from C3F7I and RLi, perfluoropropylmagnesium bromide, or perfluoropropyltrimethylsilane and potassium fluoride gave less satisfactory results for MC3F7B(OMe)3]. The conversion of MCnF2n+1B(OMe)3] salts (M = Li, BrMg) into KCnF2n+1B(OMe)3] salts and basic properties of the new salts are reported. |
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| Keywords: | Perfluoroalkylborates Perfluoroalkylation Perfluoroalkyl lithium compounds NMR spectroscopy |
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