om950941y_si_001.pdf (451.46 kB)
Conversion of Transition-Metal Complexes with Stannyl and Phosphenium Ligands into Those with Stannylene and Phosphine Ligands by Alkyl Migration from Sn to P
journal contribution
posted on 1996-03-05, 00:00 authored by Hiroshi Nakazawa, Yoshitaka Yamaguchi, Katsuhiko MiyoshiTreatment of
Cp(CO)(SnMe3)Fe{PN(Me)CH2CH2NMe(OR)} (R = Me, Et) with
Me3SiOSO2CF3
(TMSOTf) yields
[Cp(CO)(SnMe2)Fe{PN(Me)CH2CH2NMe(Me)}]OTf (2), showing that P−OR bond cleavage
and
Me migration from Sn to P take place. The X-ray
analysis of 2 reveals that this is a stannylene
complex
of iron stabilized by both an OTf- anion and an N
atom
in the phosphorus ligand. In solution, 2 is in
equilibrium with an OTf-dissociated species.