Costruction of Fused-Ring Skeletons Based on Photochemical Rearrangements of Bicyclooct-6-en-2-ones and Application to a Total Synthesis of (+/-)-Δ9(12)-Capnellene

Article abstract of DOI:10.1021/jo00284a003

A method for preparation of bicyclo<3.3.0>oct-7-en-2-ones has been developed on the basis of the photochemical <1,3>-acyl migration of 8,8-disubstituted bicyclo<3.2.1>oct-6-en-2-ones and applied to a total synthesis of (+/-)-Δ⁹⁽¹²⁾-capnellene, a linear triquinane.