SEARCH Articles Figures Tables 1,5-cycloocta diene Bis(cycloocta-l,5-diene)-nickel Cycloocta Cycloocta-2,4-dien- l-one Cycloocta-l,3-diene Cycloocta-l,3-diene Photoreaction of tropolone alkyl ether, cycloocta-2,4-dien-l-one and pyridone