Chemistry of Strained Organometallic Rings: Unusual Reactivity of Tin-Bridged [1]Ferrocenophanes with Metal Carbonyls
摘要:
The reactivity of the stanna[1]ferrocenophane Fe(eta-C5H4)(2)Sn(tBu)(2) (8) toward transition-metal carbonyls was investigated. Insertion of an Fe(CO)4 fragment into an Sn-Cp bond of 8 was observed on treatment with Fe-2(CO)(9), forming the ferrostanna[2]ferrocenophane 9 whereas in the case Of Co-2(CO)(8), a highly unusual rearrangement/transfer of CO occurred, forming the ketone-bridged dimer 10.