A highly adaptable catalyst/substrate system for the synthesis of substituted chromenes.
The gold(I)-catalyzed endo-cyclization of o-(1-hydroxyallyl)phenols to form chromenes is reported. The title compounds are prepared in high yield from readily available substrates. The system tolerates both electron rich and deficient aryl rings and a high degree of substitution on the allyl moiety.
Aponick
Aaron
A
University of Florida, Department of Chemistry, P.O. Box 117200, Gainesville, FL, USA. aponick@chem.ufl.edu
Biannic
Berenger
B
Jong
Michael R
MR
D001578:Benzopyrans / Q000138:chemical synthesis / Q000737:chemistry*; D002384:Catalysis; D056831:Coordination Complexes / Q000737:chemistry; D003500:Cyclization; D006046:Gold / Q000737:chemistry
D001578:Benzopyrans; D056831:Coordination Complexes; D006046:Gold