DIRECT PHOTOLYSIS AT 185 nm OF SIMPLE CYCLOBUTENES. MOLECULAR ELIMINATION OF ACETYLENE

Article abstract of DOI:10.1246/cl.1983.1495

Direct photolyses at 185 nm of bicyclo<3.2.0>hept-6-ene and bicyclo<4.2.0>oct-7-ene in pentane afforded acetylene and the fragment cycloalkenes as the major photoproducts, whereas the Woodward-Hoffmann allowed ring-opening giving rise to 1,3-diene was a minor process.