Synthesis 2010(21): 3686-3692  
DOI: 10.1055/s-0030-1258238
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Synthesis of Regioselectively Functionalized Pyrenes via Transition-Metal-Catalyzed Electrocyclization

D. Barney Walker, Joshua Howgego, Anthony P. Davis*
School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, UK
Fax: +44(117)9298611; e-Mail: Anthony.Davis@bristol.ac.uk;
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Publikationsverlauf

Received 14 July 2010
Publikationsdatum:
01. September 2010 (online)

Abstract

Transition-metal-catalyzed electrocyclic rearrangement of 2,6-diethynyl-1,1′-biphenyl precursors to form polysubstituted pyrenes is described. This method is useful for the preparation of pyrenes with uncommon substitution patterns, and selective integration of functional groups at the 1-, 2-, 3-, 5-, 7- and 9-positions is demonstrated.