Preparation of α,α-difluoroalkanesulfonic acids
| Autor: | George A. Olah, Jinbo Hu, Donald R. Bellew, Jurgen Simon, G. K. Surya Prakash |
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| Rok vydání: | 2004 |
| Předmět: |
Aqueous solution
Chemistry Sodium Organic Chemistry chemistry.chemical_element General Medicine Electrolyte Biochemistry Lithium battery Catalysis Inorganic Chemistry chemistry.chemical_compound Hydrolysis Environmental Chemistry Organic chemistry Lithium Superacid Physical and Theoretical Chemistry |
| Zdroj: | Journal of Fluorine Chemistry. 125:595-601 |
| ISSN: | 0022-1139 |
| DOI: | 10.1016/j.jfluchem.2003.11.031 |
| Popis: | Chlorodifluoromethanesulfonic acid (1) was prepared using a new procedure starting from perchloromercaptan, which is readily obtained from chlorination of CS2. Modified Swarts reaction transformed N,N-diethyl trichloromethanesulfenamide into N,N-diethyl chlorodifluoromethanesulfenamide, and the latter species was further oxidized and hydrolyzed into chlorodifluoromethanesulfonic acid. The preparations of other two new α,α-difluoroalkanesulfonic acids, phenyl difluoromethanesulfonic acid (2) and 2-phenyl-1,1,2,2,-tetrafluoroethanesulfonic acid (3), are also disclosed. The acids 2 and 3 are stable in the forms of sodium (lithium) salts or in aqueous solutions; however, the pure forms of 2 and 3 can readily undergo defluorinations. 1–3 and their salts have potential applications as superacid catalysts and lithium battery electrolytes. |
| Databáze: | OpenAIRE |
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