Yr. Lee et al., Efficient synthesis of dihydrofuroquinolinones and furoquinolinones by silver(I)/celite promoted oxidative cycloaddition, TETRAHEDRON, 56(24), 2000, pp. 3867-3874
A new synthesis of dihydrofuroquinolinones and furoquinolinones is achieved
from 4-hydroxy-2-quinolones and a variety of olefins in the presence of Ag
2CO3/Celite in moderate yields. The new method has been applied to the synt
hesis of the pseudoisodictamnine. (C) 2000 Elsevier Science Ltd. All rights
reserved.