Patent ID: 6579999
Filing Date: 2003-06-17
Classification: C07F,C08G

Abstract:
A coordination compound comprising one or more transition metals complexed to the following compound as ligands wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, hydrocarbyl, and substituted hydrocarbyl; R5 and R6 are independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, Cl, Br, I, hydroxyl, alkoxy, thiol, alkylthio amino, alkylamino, and dialkylamino; R2 and R3 together and R5 and R6 together can optionally form a ring; A is a divalent group consisting of optionally-substituted chains of from 1 to 12 linear, branched, or cyclic carbons, optionally containing one or more heteroatoms or organometallic groups in the chain, and â€”(R7)â€”(R8)â€”; and R7 and R8 are independently selected from the group consisting of hydrogen, hydrocarbyl, and substituted hydrocarbyl with the proviso that R5 and R6 together cannot form a phosphole ring, and when A is an aryl group, R1 and R4 cannot both be hydrogen.