Reactions of cyclo-octatetraene and its derivatives—IX
作者:Iqbal A. Akhtar、Richard J. Atkins、Gordon I. Fray、Graham R. Geen、Trevor J. King
DOI:10.1016/0040-4020(80)88029-x
日期:1980.1
Tetracyclol[8.2.2.02,9.03,8]tetradeca-4,6,11-trienes 5 are produced from tricyclo[4.2.2.02,5]deca-3,7-dienes 1 by reaction with cyclopentadienones 2 (or equiv) followed by thermal decarbonylation. With tetraphenylcyclopentadienone, however, the product 5e rearranges under the conditions required for its formation to give the dihydrosemibullvalene 11. The rearrangement evidently proceeds via the cyclo-octa-1