ABSTRACT A process for the synthesis of (per)fluorinated monofunctional carbonyl compounds having the following formula: F-A-(RF)t-B-C(O)X1 wherein: X1 = F, CF3; t = 0, 1; A, B equal to or different from each other, are independently C1-C5 (per)fluoroalkylene groups or C1-C5 (per)fluorooxyalkylene groups; RF is -Rf1-, C1-C20 perfluoroalkylene, -ORf1O-; or -ORf2-, wherein Rf2 is a perfluorooxyalkylene chain; wherein the carbonyl groups of a (per)fluorinated di-functional carbonyl compound of formula (III): X2(O)C-A-(RF)t-B-C(O)X1 wherein: X1, RF, t, A and B have the above meanings; X2, equal to or different from X1, has the same meanings as X1; are partially fluorinated with elemental fluorine in the presence of a catalyst having formula MeFy.zHF, Me being an alkaline or alkaline-earth metal or Ag, y = 1 or 2, z an integer from 0 to 4, carrying out said reaction at a temperature higher than a temperature such that it leads to the formation of C(O)FX2. Also published as:EP1440994 (A...
Process for the preparation of (per)fluorinated mono-functional carbonyl compounds
NAVARRINI, WALTER MAURIZIO
2007-01-01
Abstract
ABSTRACT A process for the synthesis of (per)fluorinated monofunctional carbonyl compounds having the following formula: F-A-(RF)t-B-C(O)X1 wherein: X1 = F, CF3; t = 0, 1; A, B equal to or different from each other, are independently C1-C5 (per)fluoroalkylene groups or C1-C5 (per)fluorooxyalkylene groups; RF is -Rf1-, C1-C20 perfluoroalkylene, -ORf1O-; or -ORf2-, wherein Rf2 is a perfluorooxyalkylene chain; wherein the carbonyl groups of a (per)fluorinated di-functional carbonyl compound of formula (III): X2(O)C-A-(RF)t-B-C(O)X1 wherein: X1, RF, t, A and B have the above meanings; X2, equal to or different from X1, has the same meanings as X1; are partially fluorinated with elemental fluorine in the presence of a catalyst having formula MeFy.zHF, Me being an alkaline or alkaline-earth metal or Ag, y = 1 or 2, z an integer from 0 to 4, carrying out said reaction at a temperature higher than a temperature such that it leads to the formation of C(O)FX2. Also published as:EP1440994 (A...I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
