دورية أكاديمية
Perfluorinated Brønsted 'Superacids': Powerful Catalysts for the Preparation of Vitamin E
| العنوان: | Perfluorinated Brønsted 'Superacids': Powerful Catalysts for the Preparation of Vitamin E |
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| المؤلفون: | Thomas Netscher, Werner Bonrath, Alois Haas, Eike Hoppmann, Horst Pauling |
| المصدر: | CHIMIA, Vol 58, Iss 3 (2004) |
| بيانات النشر: | Swiss Chemical Society, 2004. |
| سنة النشر: | 2004 |
| المجموعة: | LCC:Chemistry |
| مصطلحات موضوعية: | Biphasic catalysis, Friedel-crafts alkylation, Perfluorinated nh-acidic imides, &alpha-tocopherol, Tris(perfluoroalkylsulfonyl) methanes, Chemistry, QD1-999 |
| الوصف: | The key-step in the industrial synthesis of (all-rac)-?-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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | German English French |
| تدمد: | 0009-4293 2673-2424 |
| العلاقة: | https://chimia.ch/chimia/article/view/3822Test; https://doaj.org/toc/0009-4293Test; https://doaj.org/toc/2673-2424Test |
| DOI: | 10.2533/000942904777678181 |
| الوصول الحر: | https://doaj.org/article/f58ede11eb1a404fae9944b6fd234249Test |
| رقم الانضمام: | edsdoj.f58ede11eb1a404fae9944b6fd234249 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 00094293 26732424 |
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| DOI: | 10.2533/000942904777678181 |