An improved synthesis of triquinacene derivatives. Two-step regioselective oxidation of endo-dicyclopentadiene to Deslongchamps's diketone
Abstract
endo-Dicyclopentadiene can be regioselectively oxidised, in two steps, to Deslongchamps's diketone (3), from which either 2,3-dihydrotriquinacene-2-one (13) or the corresponding conjugated ketone (14) can be selectively prepared in excellent overall yields.