Process for the preparation of bis (perfluoroalkyl-...

Details Process for the preparation of bis (perfluoroalkyl-... Process for the preparation of bis (perfluoroalkyl-...

C - Chemistry, Metallurgy

07

D

260/366

C07D 307/32 (2006.01) C07C 323/52 (2006.01) C07D 307/33 (2006.01) D21H 17/09 (2006.01) D21H 17/11 (2006.01)

Patent

CA 1195999

Perfluoroalkyl-alkylthio lactone intermediates Abstract of the disclosure Perfluoroalkyl-alkylthio lactone intermediates of the formula Image wherein Rf is perfluoroalkyl or perfluoroalkoxyperfluoroalkyl, A is alkylene or alkylene interrupted by -0-, or N(H)- or N(lower alkyl)-, R and R1 are hydrogen or alkyl and R2 is hydrogen, alkyl or aryl can be used for the manufacture of the corresponding acid of the formula Image by reacting said perfluoroalkyl-alkylthio lactone with a perfluoro- alkyl-alkylmercaptan of the formula Rf - A - SH in the presence of a Lewis acid.

443929

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