Studies on 5-8 Fused Ring Compounds. VII. The Conformations of the Eight-Membered Rings in C<sub>6</sub>–C<sub>8</sub>–C<sub>5</sub>Fused Ring Compounds
作者:Misao Umehara、Hiromi Honnami、Shinzaburo Hishida、Takashi Kawata、Shigeru Ohba、Shonosuke Zen
DOI:10.1246/bcsj.66.2983
日期:1993.10
C6–C8–C5 fused ringcompound, tricyclo[9.4.0.04,8]pentadecane-2,9-dione were synthesized by photocycloaddition of decalin-1,3-dione to cyclopentene. The conformational analyses were carried out by MM2 and the results were compared with X-ray analyses. The eight-membered rings take predominantly boat-chair forms although those in C5–C8–C5 fused ringcompounds exist in various conformations.