REGIOSELECTIVE CARBON-CARBON BOND FORMATION BY REACTION OF Zr-ISOPRENE COMPLEX WITH ALKENES, ALKYNES AND ALKADIENES

Article abstract of DOI:10.1246/cl.1981.719

The reaction of ZrCp2(isoprene) with 1-butene, 2-butene, 1-pentene and 2-pentene proceeds with highly regioselective carbon-carbon bond formation between C2-carbon of alkenes and C4-carbon of isoprene unit.In the presence of excess isoprene, the Zr-complex showed catalysis for selective tail-to-tail linear dimerization of isoprene.The addition of diphenylacetylene resulted in the release of isoprene to form a zirconacyclo-2,4-pentadiene.