C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
C07H 15/04 (2006.01) A62D 1/00 (2006.01) A62D 1/02 (2006.01) C07H 7/02 (2006.01)
Patent
CA 2208992
The invention relates to 1-C-perfluoroalkyl glycosides containing a monosaccharid, the anomeric carbon of which has a perfluoroalkyl radical and an hydroxyl group. It also comprises a preparation process of the said glycosides consisting in: a) a reaction between an aldonolactone and a hydroxyl group protection agent; b) a reaction between the step a) product and a compound of the R F-M formula in which R F represents a linear or branched perfluoroalkyl radical containing 2 to 12 carbon atoms, and M represents Li or MgX, X being an halogen; c) unprotect the said hydroxyl groups. The 1-C-perfluoroalkyl glycosides can also be used as surfactants or fire extinguishing agents.
L'invention concerne des 1-C-perfluoroalkyl glycosides constitués d'un monosaccharide dont le carbone anomérique porte un radical perfluoroalkyle et ungroupe hydroxyle. Elle concerne également un procédé de préparation desdits glycosides qui consiste à: a - faire réagir une aldonolactone avec un agent de protection des groupes hydroxyles, b - faire réagir le produit de l'étape a) avec un composé de formule R F-M dans laquelle R F représente un radical perfluoroalkyle, linéaire ou ramifié, renfermant de 2 à 12 atomes de carbone, et M représente Li ou MgX, X étant un halogène, c - et déprotéger lesdits groupes hydroxyles. Les 1-C-perfluoroalkyl glycosides peuvent être utilisés comme agents tensioactifs et comme agents d'extinction des feux.
Lavaire Sandrine
Plantier-Royon Richard
Portella Charles
Ceca S.a.
Robic
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