Sterically hindered chelate phosphinite-phosphite ligand,...

Details Sterically hindered chelate phosphinite-phosphite ligand,... Sterically hindered chelate phosphinite-phosphite ligand,...

C - Chemistry, Metallurgy

07

F

C07F 9/50 (2006.01) B01J 31/24 (2006.01) C07F 9/12 (2006.01)

Patent

CA 2543673

The invention relates to phosphinite phosphites I of formula 1, 2, 3, 4, 5 or 6 and mixtures thereof, wherein R1, R2, R4 independently represent an alkyl or alkylene group with 1 to 8 carbon atoms, provided that at least one of the groups R1, R2, R4 is different from H; R5 to R22 independently represent H, an alkyl or alkylene group with 1 to 8 carbon atoms; R3 is H, methyl or ethyl; X is F, Cl or CF3, if n = 1 or 2 and X is H, if n = 0.

L'invention concerne des phosphites-phosphonites I de formule 1, 2, 3, 4, 5 ou 6 et leurs mélanges, formule dans laquelle R1, R2, R4 représentent indépendamment un groupe alkyle ou alkylène présentant 1 à 8 atomes de carbone, dans la mesure où au moins un des groupes R1, R2, R4 est différent de H ; R5 à R22 représentent indépendamment H, un groupe alkyle ou alkylène présentant 1 à 8 atomes de carbone ; R3 représente H, méthyle ou éthyle ; X représente F, Cl ou CF¿3?, si n = 1 ou 2, et X représente H, si n = 0.

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