O. Arjona et al., RING-OPENING SN2' REACTIONS OF 1,4,5,8-DIEPOXY-1,4,5,8-TETRAHYDROANTHRACENES BY ORGANOLITHIUM REAGENTS, Heterocycles, 47(2), 1998, pp. 977-984
The nucleophilic S(N)2' bridge opening of diepoxytetrahydroanthracenes
with organolithium reagents to produce hydroanthracene derivatives sh
ows a dependence of the excess of reagent as well as the relative ster
eochemistry of the oxygen bridge.