Macrocyclic stibine-bridged [1.1.1] and [1.1.1.1] ferrocenophanes

Abstract

Our interest in the design of antimony-bridged ferrocenophanes has led us to revisit the reaction of 1,1′-dilithioferrocene with PhSbCl2, leading to the isolation of the corresponding [1.1.1] and [1.1.1.1] ferrocenophanes, whose macrocyclic structure has been verified by X-ray diffraction. The [1.1.1] ferrocenophane has been used as a ligand for gold(I) halides, affording, in the case of the chloride derivative, a complex that exhibits carbophilic reactivity.