Phosphonites

B - Operations – Transporting – 01 – J

Patent

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B01J 31/18 (2006.01) C07C 253/10 (2006.01) C07C 253/30 (2006.01) C07F 9/48 (2006.01) C07C 255/04 (2006.01) C07C 255/07 (2006.01)

Patent

CA 2462719

Phosphonite I of formula l 1 or 2 wherein Rl and R2 independently represent hydrogen, an alkyl group or an alkene group having 1 - 8 carbon atoms, or an alkoxy group having 1-8 carbon atoms, with the proviso that RI and R2 are not simultaneously H, R3 is H or methyl, R4 is t-butyl, R5, R6, R7, R8 and R9 independently represent H or an alkyl group or an alkylene group having 1 - 8 carbon atoms.

La présente invention concerne une phosphonite I de formule 1 ou 2, dans lesquelles R1 et R2 représentent indépendamment l'un de l'autre hydrogène, un groupe alkyle ou alkylène avec de 1 à 8 atomes de carbone, ou un groupe alkoxy avec de 1 à 8 atomes de carbone, sous réserve que R1 et R2 ne représentent pas H en même temps, R3 représente H ou méthyle, R4 représente t-butyle, R5, R6, R7, R8 et R9 représentent indépendamment les uns des autres H ou un groupe alkyle ou alkylène avec de 1 à 8 atomes de carbone.

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