Direct Carbonylation of Indenyl Ligated Complexes In(CO)2FeCH(OR')R (R = Ph, p-OCH3Ph, R' = SiMe3; R = Ph, R' = CH3) under Mild Reaction Conditions

A Method for the Synthesis of Carbene Precursors from Aldehydes and the Metalates (η5-C5H5)(CO)2Fe- and (η5-C9H7)(CO)2Fe-

“…Since the indenyldicarbonyliron dimer is not commercially available, use of the readily available cyclopentadienyldicarbonyliron dimer would be more advantageous for preparation of the (α-siloxyalkyl)iron precursors and, in turn, for cyclopropanation. However, unlike the Cp-ligated complexes, the indenyl-ligated complexes 7a,c have been shown to undergo direct carbonylation under mild reaction conditions to form their acyl analogues …”