PREPARATION AND SOME CATALYTIC ACTIVITY OF POLYMER-SUPPORTED ETA-5-CYCLOPENTADIENYL-RHODIUM AND ETA-5-CYCLOPENTADIENYL-COBALT DICARBONYLS

Polymer-supported η5-cyclopentadienylrhoduim dicarbonyl and η5-cyclopentadienylcobalt dicarbonyl have been prepared with 20% divinylbenzene-polystyrene copolymer, macroporous beads. The beads have been tested for a variety of types of catalytic activity. The cobalt-containing beads have not proven to be catalysts. The rhodium beads were effective in hydrogenation of olefins, aldehydes and ketones, isomerization of olefins, disproportion of 1,4,-cyclohexadiene and cyclohexene, cyclotrimerization of ethyl propiolate, and hydroformylation of 1-pentene and 1-hexene. Decomposition of the rhodium catalysts occurs except in hydroformylation, although only slight loss of the carbonyl groups and catalytic activity was observed in cyclotrimerization. © 1979.