Expeditious synthesis of dihydronaphthofurans utilising 1,2-dioxines and stabilised phosphorus ylides

Article abstract of DOI:10.1016/S0040-4020(99)00919-9

A new practical synthesis of functionalised 1,2-dihydronaphtho[2,1- b]furans from substituted 2,4a-dihydronaphtho[2,1-c][1,2]dioxines and stabilised phosphorus ylides is described. Functionalised γ-hydroxy enones and their isomeric hemiacetals are key intermediates.