Patent ID: 8546589

Claim:
An organophosphorus compound belonging to the phosphinite-phosphite family, wherein the compound corresponds to formulae (I) or (II): in which: R 1 , R 2 , R 3 , R 4 , R 6 and R 7 , which may can be identical or different, represent a hydrogen atom, a linear or branched alkyl radical having from 1 to 12 carbon atoms which can comprise heteroatoms, a radical comprising a substituted or unsubstituted aromatic or cycloaliphatic ring which can comprise heteroatoms, a carbonyl, alkoxycarbonyl or alkoxy radical, a halogen atom, a nitrile group or a haloalkyl group having 1 to 12 carbon atoms R 5 and R 8 , which can be identical or different, represent a linear or branched aliphatic radical having from 1 to 12 carbon atoms which can comprise heteroatoms, a radical comprising a substituted or unsubstituted aromatic or cycloaliphatic ring which can comprise heteroatoms or several aromatic rings, condensed or joined together.