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Open Access Perfluorinated Brønsted 'Superacids': Powerful Catalysts for the Preparation of Vitamin E

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The key-step in the industrial synthesis of (all-rac)-α-tocopherol (synthetic vitamin E) is the condensation reaction of trimethylhydroquinone with the C20 building block isophytol. For this Friedel-Crafts-type reaction, perfluorinated NH- and CH-acidic compounds (perfluoroalkyl(aryl)sulfonyl imides and methides) have been applied as excellent catalysts, preferably in biphasic solvent systems.

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Keywords: &ALPHA-TOCOPHEROL; BIPHASIC CATALYSIS; FRIEDEL-CRAFTS ALKYLATION; PERFLUORINATED NH-ACIDIC IMIDES; TRIS(PERFLUOROALKYLSULFONYL) METHANES

Document Type: Research Article

Publication date: March 1, 2004

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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