SEARCH Articles Figures Tables 1.3- dienes from photochemical ring-opening Acridones photochemical ring opening Cannabinol photochemical ring opening Cyclobutane ring opening photochemical Cyclobutanes ring opening of, photochemical Cyclobutene ring opening, photochemical Cyclobutenes photochemical ring-opening to dienes Cyclohexadiene photochemical ring opening Cyclohexadienes photochemical ring opening Dibenzofurans photochemical ring opening Palustric ester photochemical ring opening Phenol ring opening photochemical Photochemical electrocyclic ring-opening Photochemical induced ring opening Precalciferol via photochemical ring opening Provitamin photochemical ring opening Ring photochemical Xanthenones photochemical ring opening