The synthesis of some azuleno[c]furans.
Azuleno[5,6-c]furan and 4-chloroazuleno[4,5-c]furan have been prepared by a tandem cycloaddition-cycloreversion strategy. These azulenofurans are qualitatively more stable than isobenzofuran and were characterised spectroscopically and as their Diels-Alder adducts with N-methylmaleimide.
Payne
Alan D
AD
School of Biomedical and Chemical Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.
Wege
Dieter
D