Unexpected Formation of 1,5-Bis(cyclobuta)-3,4,7,8-tetramethylcyclooctatetraene from a Zirconacyclopentadiene.

摘要

Attempts to convert 2,2'-cyclobuta-1,1'-dimethylzirconacyclopentadiene into the corresponding bismole by treatment with phenylbismuth dibromide, led instead to the formation of 1,5-Bis(cyclobuta)-3,4,7,8-tetramethylcyclooctatetraene. A preliminary mechanistic study of this unusual transformation was also carried out.