Fluorine containing allylethers and higher homologs

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 43/17 (2006.01) C07C 41/22 (2006.01) C07C 41/24 (2006.01) C07C 43/313 (2006.01)

Patent

CA 2393460

The present invention describes a novel process for the preparation of perfluoro allyl ethers. The process involves providing a hydrogen-containing precursor comprising at least one 1,2-dichloro alkyl ether moiety, fluorinating the precursor to provide a perfluorinated intermediate, and dechlorinating the perfluorinated intermediate to the corresponding perfluorinated ether. A reaction product of a perfluorinated olefin and an allyl ether may also be used as a precursor. Such a reaction product is chlorinated before the fluorination step. Perfluoro vinyl or allyl ethers may be used in place of the perfluorinated olefin. Novel perfluoro alkoxy compounds are also described.

L'invention concerne un nouveau procédé de préparation d'allyl éthers perfluorés. Ledit procédé consiste à prévoir un précurseur contenant de l'hydrogène, comprenant au moins un fragment 1,2-dichloro alkyl éther, à fluorer le précurseur, de sorte qu'un intermédiaire perfluoré soit produit et à déchlorer l'intermédiaire perfluoré, de manière que l'éther perfluoré correspondant soit produit. Un produit réactionnel d'une oléfine perfluorée et d'un allyl éther peut également être utilisé en tant que précurseur. Ledit produit réactionnel est chloré avant la phase de fluoration. Les perfluoro vinyl ou allyl éthers peuvent être utilisés à la place de l'oléfine perfluorée. Des nouveaux composés alcoxy perfluoro sont également décrits.

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