Studies on the synthesis and structural characterization of cyclomercurated ferrocenylimines containing heterocyclic ring

The cyclomercurated ferrocenylimines containing heterocyclic ring can be prepared by the cyclomercuration of acylferrocene, followed by the condensation of the resulting product with the appropriate heterocyclic amine. This procedure provides an efficient method for the synthesis of cyclomerucurated ferrocenylimines containing heterocyclic ring which is difficultly synthesized by the traditional method, i.e. imination and then cyclomercuration. A series of these compounds were synthesized by this new method and characterized. The X-ray crystal structure of HgCl(η⁵-C₅H₃C(CH₃)=N-2-C₅H₃N-6-CH₃) Fe(η⁵-C₅H₅)] (3d) has been determined and the reaction mechanism was proposed.