Process for producing alkoxycarbonylfluoroalkanesulfonates

Details Process for producing alkoxycarbonylfluoroalkanesulfonates Process for producing alkoxycarbonylfluoroalkanesulfonates

2007-10-24

2008-08-19

Zucker, Paul A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

C562S109000

Reexamination Certificate

active

07414148

ABSTRACT:
A process for producing an alkoxycarbonylfluoroalkanesulfonate represented by the formula [1] is provided. This process includes the steps of (a) reacting a halofluoroalkanoate represented by the formula [2], with a sulfinating agent, thereby obtaining an alkoxycarbonylfluoroalkanesulfinate represented by the formula [3]; and (b) reacting the alkoxycarbonylfluoroalkanesulfinate with an oxidizing agent, thereby obtaining the target alkoxycarbonylfluoroalkanesulfonate. Furthermore, it is possible to react the obtained alkoxycarbonylfluoroalkanesulfonate with a monovalent onium salt to conduct a salt exchange, thereby obtaining a alkoxycarbonylfluoroalkanesulfonic acid onium salt represented by the formula [4].

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“Perfluorooctyl Sulfonates; Proposed Significant New Use Rule” dated Oct. 18, 2000 (vol. 65, No. 202) from the U.S. Environmental Protection Agency.

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