Is ferrocene more aromatic than benzene?Electronic supplementary information (ESI) available: experimental including details of preparation and spectroscopic characterization of all new compounds. See http://www.rsc.org/suppdata/cc/b0/b009696m/
Abstract
A combination of Pd-catalyzed arene–alkynyl couplings and Cu(OAc)2-promoted internal alkyne dimerization furnishes novel ferrocene-based dehydroannulenes in high yield.