Process for producing perfluorodiacyl fluorinated compounds

C - Chemistry – Metallurgy – 07 – C

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C07C 51/09 (2006.01) C07C 59/315 (2006.01) C07C 59/60 (2006.01) C07C 67/14 (2006.01) C07C 69/708 (2006.01) C07C 69/734 (2006.01)

Patent

CA 2516342

A process for producing compounds, which are useful as the raw material in the production of various fluororesins, from inexpensive and easily available starting materials in fewer steps in high yield. The process comprises producing a compound (3) by reacting a compound (1) with a compound (2), fluorinating the compound (3) in a liquid phase into a compound (4), and converting the compound (4) either into a compound (5) or into a compound (5) and a compound (6) through the dissociation of ester linkages.

La présente invention concerne un procédé pour préparer des composés qui sont utiles en tant que substances brutes utilisées pour la préparation de différentes fluororésines, à partir de substances de départ peu coûteuses et facilement disponibles en un nombre d'étapes limité avec un rendement élevé. Le procédé comprend la production d'un composé (3) par réaction d'un composé (1) avec un composé (2), la fluoration du composé (3) dans une phase liquide pour obtenir un composé (4), et la conversion du composé (4) pour obtenir soit un composé (5), soit un composé (5) et un composé (6), grâce à la dissociation de liaisons ester.

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