LIGANDS AND CATALYST SYSTEMS THEREOF FOR THE CATALYTIC OLIGOMERIZATION OF OLEFINIC MONOMERS

摘要

The present invention relates to a ligand having the general Formula (I); P(R4J-P(R1) (R2)=N(R3) (I) wherein: the R1 group is selected from a hydroca rbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydro carbyl group; the R2 group is selected from hydrocarbyl, substituted hydroca rbyl, heterohydrocarbyl and substituted heterohydrocarbyl groups; the R3 is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group , a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkyl enedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an option ally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or ni trogen atoms of the arylenedioxy, arylenedimercapto or arylenediamino struct ure.