Synthesis and characterisation of Dewar benzene-ferrocene conjugates

Dalton Trans. 2009 May 7:(17):3137-9. doi: 10.1039/b904488b. Epub 2009 Mar 25.

Abstract

The first Dewar benzene-ferrocene conjugates were synthesised by the reaction of tetraalkylcyclobutadiene-AlCl(3) complexes with 3-ferrocenylpropynoates. Owing to extensive delocalisation, these conjugates feature unusually high thermal and chemical stability, rearranging to their corresponding phenylferrocenes (benzenes) under forcing microwave irradiation conditions.