Base-Free Iron Hydrosilylene Complexes via an α-Hydride Migration that Induces Spin Pairing.
J Am Chem Soc
; 140(11): 3880-3883, 2018 03 21.
Article
en En
| MEDLINE
| ID: mdl-29528225
ABSTRACT
Two new base-free hydrosilylene complexes of iron were synthesized using the novel starting material Cp*( iPr2MeP)FeMes. These Cp*( iPr2MeP)Fe(H)SiHR (R = DMP, Trip) complexes are in equilibrium with the corresponding iron silyl complexes, Cp*( iPr2MeP)FeSiH2R, which can be trapped and characterized for R = Trip. Unlike the Ru analogues, the Fe silylene complex with R = DMP is observed to undergo an intramolecular C-H activation involving formal addition of a benzylic C-H bond across the Fe-Si bond. This increased activity for bond activations is also observed for reactions with hydrogen, where Fe reacts faster than a Ru analog to form the hydrogenation product, Cp*( iPr2MeP)H2FeSiH2DMP.
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Banco de datos:
MEDLINE
Asunto principal:
Compuestos de Hierro
/
Hidrógeno
Idioma:
En
Año:
2018
Tipo del documento:
Article