N. Ruiz et al., DIELS-ALDER REACTIONS OF FURO[3,4-B]1,4-BENZODIOXINS - AN EFFICIENT APPROACH TO SUBSTITUTED DIBENZO[B,E][1,4]DIOXINS, Synthetic communications, 26(11), 1996, pp. 2057-2066
In view of their potential biological properties, different substitute
d dibenzo [b,e][1,4] dioxins have been synthesized using Diels-Alder r
eactions. This required the preparation of furobenzodioxins and furthe
r dehydration of the bicyclo-adducts of the cycloaddition.