Direct fluorination process for preparing high purity...

Details Direct fluorination process for preparing high purity... Direct fluorination process for preparing high purity...

C - Chemistry, Metallurgy

07

C

C07C 69/716 (2006.01) C07C 45/63 (2006.01) C07C 49/167 (2006.01) C07C 67/307 (2006.01)

Patent

CA 2324186

A process for fluorinating .beta.-dicarbonyls to form the corresponding .alpha.-fluorinated- .beta.-dicarbonyl compounds is provided. The process is represented by the following reaction scheme: (see formula I) where R, is H, alkyl or alkoxy, R2 is H, alkyl or perfluoroalkyl, and R3 is H, Cl, Br, I or alkyl. Use of oxygen in the fluorine stream yields a product which is 90-96% pure and contains radical fluorination impurity levels which are 10-20% lower than when oxygen is not used.

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