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US 5,939,370 AGranted
Fluoroalkviglycosiduronic acids and corresponding 6(3)-lactones, preparation and uses
AssigneeCeca S.A.
InventorsSerge Petit, Stephane Fouquay, Daniel Bernard
Life of this patent
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Abstract
The invention relates to fluoroalkyl derivatives of uronic acids of the formula: ##STR1## and the corresponding lactones, as well as a process for the preparation of the said compounds, which comprises reacting a glycosiduronic acid or a glycosiduronolactone with an alcohol of formula R.sub.1 OH, which process may also include steps of basiciation and acidification. The compounds according to the invention may be used in particular as surfactants.
Claims10
A compound of one of the formulae Ia, Ib or II ##STR6## in which:
- R.sub.1 represents a saturated or unsaturated, linear or branched fluoroalkyl radical containing 4 to 46 carbon atoms;
- R.sub.2 represents H, R.sub.1 as defined above, an alkali metal or alkaline-earth metal, or a quaternary ammonium of formula:
- ##STR7## in which R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be identical or different, represent H or a C.sub.1 -C.sub.6 alkyl or hydroxyalkyl radical.
Dependencies are inferred from the claim text.