Patent ID: 8871916

Claim:
The tertiary phosphine of formula: wherein: n is an integer ranging from 1-5 inclusive; —O—R 5 is: (1) an —ON(R 7 ) 2 group, an —O—NR 7 —CO—R 7 group or an —O—N(COR 7 )—COR 7 group, where each R 7 is an optionally substituted alkyl or aryl, or where the two R 7 groups together form an optionally substituted 5-8 member heterocyclic ring having one or more heteroatoms or —CO— groups or both in the ring; (2) a phenyloxy group substituted with one or more halogens, hydroxy, nitro, alkyl, alkenyl, alkynyl, aryl, halogenated alkyl, hydroxy-substituted alkyl, amino-substituted alkyl, cyano, isocyano, thiocyano isothiocyano —SO 2 —SO 3 R, —N(R) 2 , —COR, —COOR, —CON(R) 2 , —NR—CO—NR—, —CO—SR, —OR, or —SR, where each R, independently, is hydrogen, alkyl, halogenated alkyl, alkenyl, alkynyl, aryl, halogenated aryl, heteroaryl, or heterocyclic groups, or two R together form a 5-8 member optionally substituted heterocyclic ring containing one or more heteroatoms, optionally one or more —CO— groups or both; (3) —O—R 5 where R 5 is an optionally substituted heterocylic or heteroaromatic group; or (4) —O—SO 2 —O—R S where R S is halogen, optionally substituted alkyl, optionally substituted aryl, optionally substituted phenyl, halogenated alkyl, halogenated aryl, halogenated phenyl, fluorinated alkyl, fluorinated aryl, fluorinated phenyl, unsubstituted alkyl, unsubstituted phenyl, methyl, ethyl, —CF 3 , or —C 4 F 9 ; and Y 1 and Y 2 are alkoxyalkyl groups.