Process for producing fluorine-containing...

Details Process for producing fluorine-containing... Process for producing fluorine-containing...

2008-08-07

2009-10-06

Zucker, Paul A (Department: 1621)

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

Organic compounds

Carboxylic acid esters

Reexamination Certificate

active

07598413

ABSTRACT:
There is provided a process for producing a fluorine-containing alkylsulfonylaminoethyl α-substituted acrylate of the formula [3] by reaction of an aminoethyl α-substituted acrylate of the formula [1a] with a fluorine-containing alkylsulfonic fluoride of the formula [2], or by reaction of an aminoethyl a-substituted acrylate salt of the formula [1b] with a fluorine-containing alkylsulfonic fluoride of the formula [2] in the presence of a base, wherein a fluorine-containing compound is used as a reaction solvent:where R1is a hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tertbutyl group, fluoromethyl group, difluoromethyl group, trifluoromethyl group or perfluoroethyl group; R2is a fluorine-containing alkyl group having a carbon number of 1 to 6; Xn−is a counter anion (n is a positive integer); and Y is a fluorine atom, chlorine atom or bromine atom.

REFERENCES:
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patent: 6949325 (2005-09-01), Li et al.
patent: 7115771 (2006-10-01), Komata et al.
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patent: 20005281301 (2005-10-01), None
Barthel-Rosa et al, Coordination Chemistry Reviews, Chemistry in Fluorous Media: A User's Guide to Practical Considerations in the Application of Fluorous Catalysts and Reagents, 1999, 190-192, pp. 587-605.
“Fluorine Chemistry”, Kodansha Scientific Ltd., 1979, pp. 75-76.

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