Process for producing fluorinated fluorosulfonylalkyl vinyl...

Details Process for producing fluorinated fluorosulfonylalkyl vinyl... Process for producing fluorinated fluorosulfonylalkyl vinyl...

2006-02-28

2006-02-28

Zucker, Paul A. (Department: 1621)

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

Organic compounds

Sulfur halides

Reexamination Certificate

active

07005545

ABSTRACT:
The present invention provides a process for producing a fluorinated fluorosulfonylalkyl vinyl ether represented by general formula (2):in-line-formulae description="In-line Formulae" end="lead"?CF2═CFO(CF2CF(CF3)O)nCF2CF2SO2F  (2)in-line-formulae description="In-line Formulae" end="tail"?wherein n is an integer from 0 to 10, comprising fluorinating a perfluorovinylether sulfonate with SF4and HF, the perfluorovinylether sulfonate being represented by general formula (1):in-line-formulae description="In-line Formulae" end="lead"?CF2═CFO(CF2CF(CF3)O)nCF2CF2SO3M  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein M is Ma or Mb1/2, provided that Ma is an alkali metal and Mb is an alkaline earth metal; and n is as defined above. According to the process of the invention, the fluorinated fluorosulfonylalkyl vinyl ether can be produced in high yield in an industrially advantageous manner.

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International Search Report dated Sep. 2, 2003.

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