SEARCH Articles Figures Tables 1,5-cycloocta diene Bis(cycloocta-l,5-diene)-nickel Cycloocta Cycloocta-2,4-dien- l-one Cycloocta-l,5-dienes Cycloocta-l,5-dienes Photoreaction of tropolone alkyl ether, cycloocta-2,4-dien-l-one and pyridone