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Bis(perfluorosulfonyl)methane salts, and a process for preparing same

  • US 5,446,134 A
  • Filed: 07/08/1993
  • Issued: 08/29/1995
  • Est. Priority Date: 11/08/1991
  • Status: Expired due to Fees
First Claim
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1. A process for the preparation of a compound of the formula


  • space="preserve" listing-type="equation">[(R.sub.F SO.sub.2).sub.2 C(Y)].sub.n.sup.- M.sup.n
wherein Y is --C.tbd.N or RZ-- where Z is carbonyl, sulfonyl or phosphoryl and R is a monovalent organic radical;

M is a metal or an organic radical;

n is the valency of M; and

RF is perfluoroalkyl or perfluoroaryl, comprising;

i) reacting a compound


space="preserve" listing-type="equation">[(R.sub.F SO.sub.2).sub.2 CH].sub.n.sup.- M'"'"'.sup.n wherein M'"'"'n is a metal or an organic radical, with a compound YX,where X is a halogen or a pseudohalide when Y is RZ--, and X is a halogen when Y is --CN;

in the presence of a nucleophilic aprotic base.

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