Synthesis of cyclopentadienylmanganese tricarbonyl resins as potential olefin traceless supports

Cyclopentadienylmanganese tricarbonyl (cymantrene) was attached to polymer support via amide linkages. Two synthetic routes to obtain these cymantrene resins in high yield are reported. Spectroscopic evidence indicates that olefin substrates were loaded to give the corresponding η2-complexes under light-promoted ligand exchange conditions by using a THF suspension of these manganese-containing resins. Subsequent treatment of the resin/olefin complex with mild oxidizing agents afforded the starting olefins in high purities.