Oligomerization of phenylferrocenylacetylene under the action of WCl6

Phenylferrocenylacetylene was found to be capable of oligomerizing in the presence of WCl6 (130 °C, 24 h) to afford short polyenes (with about 5 monomer units in the macromolecule) in up to ∼30% yield. The polyenes synthesized are promising reactive macromonomers and building blocks for high-tech materials.