| abstract |
Process for the telomerization of a conjugated diene, wherein the conjugated diene is reacted with a compound containing an active hydrogen atom and having a formula R'-H in the presence of a telomerization catalyst based on: (a) a source of group VIII metal, (b) a bidentate ligand wherein the bidentate ligand has the general formula I R<1>R<2>M<1>-R-M<2>R<3>R<4> (I) wherein M<1 >and M<2 >are independently P, As or Sb; R<1>, R<2>, R<3 >and R<4 >independently represent a monovalent aliphatic group; or R<1>, R<2 >and M<1 >together and/or R<3>, R<4 >and M<2 >together independently represent an optionally substituted aliphatic cyclic group with at least 5 ring atoms, of which one is the M<1 >or M<2 >atom, respectively; R represents a bivalent organic bridging group; and novel bidentate diphosphines which can be used in this process. |