Patent ID: 7161020

Claim:
A phosphite of the formula I: where R A is a monovalent unsubstituted aliphatic, alicyclic, aromatic, heteroaromatic, mixed aliphatic-alicyclic, mixed aliphatic-aromatic, heterocyclic, or mixed aliphatic-heterocyclic hydrocarbon radical having from 1 to 50 carbon atoms; or a monovalent aromatic which is unsubstituted or substituted by at least one radical selected from among alicyclic, aromatic, heteroaromatic, mixed aliphatic-alicyclic, mixed aliphatic-aromatic, heterocyclic, mixed aliphatic-heterocyclic hydrocarbon radicals having from 1 to 25 carbon atoms, F, Cl, Br, I, -CF 3 , -CH 2 (CF 2 ), CF 3 where j=0 —9, -OR 9 , -COR 9 , -CO 2 R 9 , -CO 2 M, -SR 9 , -SO 3 R 9 , -SO 3 M, -SO 2 NR 9 R 10 or - N=CR 9 R 10 ; or a monovalent heteroaromatic which is unsubstituted or substituted by at least one radical selected from among aliphatic, alicyclic, aromatic, heteroaromatic, mixed aliphatic-alicyclic, mixed aliphatic-aromatic, heterocyclic, mixed aliphatic-heterocyclic hydrocarbon radicals having from 1 to 25 carbon atoms, F, Cl, Br, I, -CF 3 , -CH 2 (CF 2 ), CF 3 where j=0 —9, -OR 9 , -COR 9 , -CO 2 R 9 , -CO 2 M, -SR 9 , -SO 2 R 9 , -SOR 9 , -SO 3 M, -SO 2 NR 9 R 10 ,-NR 9 R 10 or -N=CR 9 R 10 . R 1 , R 2 , R 3 and R 4 are each independently a monovalent substituted or unsubstituted aliphatic, alicyclic, aromatic, heteroaromatic, mixed aliphatic-alicyclic, mixed aliphatic-aromatic, heterocyclic, mixed aliphatic-heterocyclic hydrocarbon radical having from 1 to 50 carbon atoms, H, F, Cl, Br, I, —CF 3 , —CH 2 (CF 2 ) j CF 3 where j=0–9, —OR 9 , —COR 9 , —CO 2 R 9 , —CO 2 M, —SR 9 , —SO 2 R 9 , —SOR 9 , —SO 3 R 9 , —SO 3 M, —SO 2 NR 9 R 10 , —NR 9 R 10 , —N═CR 9 R 10 , where R 9 and R 10 are each independently a H, monovalent substituted or unsubstituted aliphatic or aromatic hydrocarbon radical having from 1 to 25 carbon atoms, and M is an alkali metal ion, an alkaline earth metal ion, an ammonium ion or phosphonium ion; or adjacent radicals R 1 to R 4 together form a fused substituted or unsubstituted aromatic, heteroaromatic, aliphatic, mixed aromaticaliphatic or mixed heteroaromatic-aliphatic ring system; and and k=0 or 1, wherein when R 1 , R 2 , R 3 and R 4 are each an H atom and k=0, R A is not an alkyl, aryl, aralkyl, alkenyl or cycloalkyl group, and when R 1 , R 2 , R 3 and R 4 are each an H atom and k=1, R A is not an alkyl or aryl group; or of the formula A, E, F, G, O or M: