Unexpected migration of the indenyl ligand in the reaction of alkynyl(η5-indenyl)iron complexes with phosphanes and phosphites from iron to the alkynyl group

Abstract

Novel indenylvinylidene iron complexes are formed in the reaction of alkynyl(η⁵-indenyl)iron complexes with phosphites and phosphanes in large excess by an intermolecular transfer of the indenyl ligand from iron to the C_β atom of the alkynyl ligand; mechanistic studies indicate that the reaction proceeds by a radical pathway.