POLYMER-SUPPORTED METALLOCENES AND THEIR APPLICATIONS TO THE CATALYSIS OF OLEFIN ISOMERIZATION, OLIGOMERIZATION, EPOXIDATION AND DINITROGEN FIXATION REACTIONS

Article abstract of DOI:10.1016/S0022-328X(81)80007-1

Polymer-attached TiCp2Cl2 and TiCpCl3 have been reduced by BuLi and the reduction products have been employed in catalytic isomerization of allylbenzene and 1,5-cyclooctadiene.The former was converted into a mixture of trans- and cis-propenyl benzene, white the 1,5-cyclooctadiene was isomerized to 1,3-cyclooctadiene through the 1,4-cyclooctadiene intermediate.Oligomerization of ethyl propiolate has been effected by the polymer-attached titanocene species and gave a mixture of closed and open trimers.Polymer-supported TiCp2Cl2 and TiCpCl3 can be used directly, without going through the reduction process, for the low yield epoxidation of cyclohexene and cyclooctene.Polymer-supported, methylene-bridged, Cl2TiCp(C5H4CH2C5H3-<*>)CpTiCl2, was prepared and used in dinitrogen fixation studies.Polymer-attached TiCp2(CO)2 was prepared.