| US 7,585,994 B2 | ||
| Process for the preparation of compounds containing perfluoroalkanesulfonic acid groups | ||
| Nikolai Ignatyev, Duisburg (Germany); Michael Schmidt, Seeheim-Jugenheim (Germany); Udo Heider, Winchester (United Kingdom); Peter Sartori, Utting (Germany); and Andry Kucheryna, Wuppertal (Germany) | ||
| Assigned to Merck Patent GmbH, Darmstadt (Germany) | ||
| Filed on May 31, 2006, as Appl. No. 11/443,278. | ||
| Application 11/443278 is a continuation of application No. 10/478969, granted, now 7,084,290, previously published as PCT/EP02/04917, filed on May 04, 2002. | ||
| Claims priority of application No. 101 26 929 (DE), filed on Jun. 01, 2001; and application No. 101 36 121 (DE), filed on Jul. 26, 2001. | ||
| Prior Publication US 2006/0217568 A1, Sep. 28, 2006 | ||
| Int. Cl. C07C 303/00 (2006.01) | ||
| U.S. Cl. 558—54 [502/162; 429/306; 429/199; 429/200; 429/188; 429/205; 548/125; 558/44; 558/53] | 10 Claims |
| 1. A compound of the formula
Mn+[OSO2CF3]n−,
in which Mn+ (n=1 or 2) is a ring of the formula
 X is P or N, and
R1
is
hydrogen, or
an alkyl group having from 1 to 16 carbon atoms,
where the ring is optionally partially subtituted by F, Cl, N(CnF(2n+1−x)Hx)2, O(CnF(2n+1−x)Hx), SO2(CnF(2n+1−x)Hx), CnF(2n+1−x)Hx, where 1≤n≤6 and 0≤x≤2n+1, alkylaryl, aryl and/or a heterocyclic group,
and where the alkyl group is optionally partially substituted by F, Cl, N(CnF(2n+1−x)Hx)2, O(CnF(2n+1−x)Hx), SO2(CnF(2n+1−x)Hx), CnF(2n+1−x)Hx, where 1≤n≤6 and 0≤x≤2n+1.
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