Synthesis of phenanthro[9,10-b]furans by the photolysis of dihydrofurobenzodioxins
Abstract
The synthesis of some phenanthro[9,10-b]furans by the photolysis of 3a,9a-dihydrofuro[2,3-b][1,4]benzodioxins in alcoholic solution is described. This method can be used to overcome factors which prevent photocyclisation in the parent furans.