Patent ID: 6570033
Filing Date: 2003-05-27
Classification: C07C,C07F

Abstract:
A bisphosphite of formula I wherein R1, R2, R3 and R4 are each hydrogen, an aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aromaticâ€”aromatic, aliphatic-aromatic hydrocarbon, heterocyclic or aliphatic-heterocyclic group having from 1 to 50 carbon atoms, F, Cl, Br, I, â€”CF3, â€”OR7, â€”COR7, â€”CO2R7, â€”CO2M, â€”SR7, â€”SO2R7, â€”SOR7, â€”SO3R7, â€”SO3M, â€”SO2NR7R8, NR7R8, N&boxH;CR7R8, NH2, where R1 to R4 are identical or different and may be covalently linked to one another;R7 and R8 are each hydrogen, a substituted or unsubstituted, aliphatic or aromatic hydrocarbon or heterocyclic or aliphatic heterocyclic radical having from 1 to 25 carbon atoms, and may be identical or different; M is an alkali metal, alkaline earth metal, ammonium or phosphonium ion; Q is a substituted or unsubstituted divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic, or aliphatic-aromatic hydrocarbon radical having from 1 to 50 carbon atoms, and in open-chain structural elements, one or more methylene groups may be replaced by oxygen and/or sulfur and/or NR1 and/or NH and/or one or more CH groups may be replaced by nitrogen, W and X are each a substituted or unsubstituted aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aromaticâ€”aromatic, aliphatic-aromatic hydrocarbon, heterocyclic or aliphatic-heterocyclic radical having from 1 to 50 carbon atoms which may be identical or different or covalently linked to one another, where the substituents are selected from the group consisting of an aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aromaticâ€”aromatic, aliphatic-aromatic hydrocarbon, heterocyclic or aliphatic-heterocyclic radical having 1 to 50 carbon atoms, F, Cl, Br, I, â€”CF3, â€”OR25, â€”COR25, â€”CO2R25, â€”CO2M, â€”SR25, â€”SO2R25, â€”SOR25, â€”SO3R25, â€”SO3M, â€”SO2NR25R26, N&boxH;CR25R26, NH2, where R9 to R14 are identical or different and may be covalently linked to one another, provided that when the phosphite oxygens linked to W and X are each linked to an aromatic ring then they are not linked to the same aromatic ring.