Fluorination of carbanions with N-fluoro-N-alkylsulfonamides
AssigneeE. I. Du Pont de Nemours and Company
InventorWilliam E. Barnette
Life of this patent
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Abstract
Process for fluorinating an organic carbanion, which process comprises contacting and reacting, in a dry inert atmosphere, the compound of the formula selected from ##STR1## wherein ##STR2## is the carbanion, M is a counter ion, and X is a halide and a selected N-flouro-N-alkylsulfonamide.
Claims16
Process for fluorinating an organic carbanion, which process comprises contacting and reacting, in a dry inert atmosphere, the compound of the formula selected from ##STR13## and the N-fluoro-N-alkylsulfonamide of the formula ##STR14## wherein R is C.sub.1-30 branched or straight chain alkyl, C.sub.3-30 cycloalkyl, ar(C.sub.1-10 alkyl) or aryl wherein ar and aryl are C.sub.6-14 ;
- R.sup.1 is C.sub.1-30 branched or straight chain alkyl, C.sub.3-30 cycloalkyl or ar(C.sub.1-10 alkyl) wherein ar is C.sub.6-14 ;
- ##STR15## is an organic carbanion other than a .beta.-diketo enolate;
- M.sup..sym. is an alkali metal or tetraalkylammonium cation;
- M.sup. +2 is an alkaline earth metal cation;
- X.sup..crclbar. is fluoride, chloride, bromide or iodide;
- and
- F is .sup.19 F or .sup.18 F.
N-Fluoro-N-neopentyl-p-toluenesulfonamide.
N-Fluoro-N-(exo-2-norbornyl)-p-toluenesulfonamide.
N-Fluoro-N-(endo-2-norbornyl)-p-toluenesulfonamide.
N-Fluoro-N-neopentyl-n-butylsulfonamide.
Dependencies are inferred from the claim text.