C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 67/287 (2006.01) C07C 51/09 (2006.01) C07C 59/135 (2006.01) C07C 69/708 (2006.01) G01N 30/04 (2006.01) G01N 30/86 (2006.01) G01N 30/88 (2006.01) G01N 30/02 (2006.01)
Patent
CA 2429074
Determining accurately the amount of a fluorinated ester in the preparation thereof or determining accurately the consumption of a fluorinated ester and the amount of a formed substance in the chemical transformation of the ester enables efficient preparation of the objective substance in a yield equal to or higher than an objective level. That is, a process for preparing a fluorinated ester from starting compounds by a chemical reaction, characterized in that the reaction is continued until the yield of the ester reaches a predetermined level as determined by gas chromatography with a nonpolar column.
Le procédé de cette invention consiste à déterminer avec précision la quantité d'ester fluoré à utiliser pour sa préparation ou la consommation d'un ester fluoré et la quantité d'une substance obtenue dans la transformation chimique de l'ester, ce qui permet de préparer efficacement la substance précitée dans un rendement égal ou supérieur à un niveau donné. Le procédé de préparation par réaction chimique d'un ester fluoré à partir de composés de départ se caractérise en ce que la réaction se poursuit jusqu'à ce que le rendement de l'ester atteigne un niveau prédéterminé tel que déterminé par chromatographie gazeuse avec colonne non polaire.
Isemura Tsuguhide
Kawahara Kengo
Okazoe Takashi
Asahi Glass Co. Ltd.
Smart & Biggar
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