Arene-metal complexes Organic synthetic applications

Although a wide range of Ti -arene transition metal complexes are known/ it is only ri -arene chromium tricarbonyl complexes that have found significant applications in synthetic organic chemistryThese complexes have been investigated either as key intermediates in synthesis " or as efficient catalysts in a variety of processes. 

Transition metal boryl complexes have been the subject of considerable recent research effort. These compounds find application as synthetically useful reagents in organic transformations such as hydroboration and diboration of carbon-carbon multiple bonds.More recently, the involvement of cyclopentadienyl transition metal boryl complexes in both stoichiometric and catalytic functionalization of alkanes and arenes has been demonstrated, notably by Hartwig ef Complexes CpFe(CO)2(Bcat) (cat = 02C6H4) 80, and GpFe(GO)2(BPh2), which have been... 

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