Pentahydroperfluoroalkylamine n-oxides

Details Pentahydroperfluoroalkylamine n-oxides Pentahydroperfluoroalkylamine n-oxides

C - Chemistry, Metallurgy

11

D

260/247, 134/44,

C11D 3/26 (2006.01) B01D 19/04 (2006.01) B01F 17/00 (2006.01) C07C 291/04 (2006.01) C07D 295/22 (2006.01) C07D 295/24 (2006.01)

Patent

CA 1225647

TITLE PENTAHYDROPERFLUOROALKYLAMINE N-OXIDES ABSTRACT OF THE DISCLOSURE Amine N-oxides represented by the formula: Image wherein Rf is C3-C20 perfluoroalkyl; R is H or alkanoyl containing 1-4 carbons; R1 and R2 are the same or different C1-C6 alkyl or C1-C6 hydroxyalkyl, or together with the N atom to which they are bonded form a piperidine, morpholine or N-alkyl(C1-C4)piperazine ring; or R1 is C1-C6 alkyl or C1-C6 hydroxyalkyl and R2 is Image R3 is C1-C6 alkyl or C1-C6 hydroxyalkyl; and n is an integer from 1-8; and mixtures thereof. The amine N-oxides are highly effective in reducing the surface tension of aqueous systems and as aqueous foaming agents. They are prepared by oxidizing the amine represented by the formula: Image CH-1237

470660

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