A solution-phase route to a tetraethynylated (cyclobutadiene)cyclopentadienylcobalt complex with a para-(1,3,2,4)-substitution patternElectronic supplementary information (ESI) available: experimental, including details of preparation and spectroscopic characterization of all new compounds. See http://www.rsc.org/suppdata/cc/b1/b109848a/
作者:Matthew Laskoski、Jason G. M. Morton、Mark D. Smith、Uwe H. F. Bunz
DOI:10.1039/b109848a
日期:2001.12.19
The synthesis of a tetraethynylated, CpCo-stabilized cyclobutadiene complex via a metalation/carbonylation/alkynylation route is reported; this synthetic sequence allows, for the first time, the solution phase synthesis of a tetraethynylcyclobutadiene(cyclopentadienyl)cobalt derivative, and sorts the four alkyne substituents into two para-related groups.