Synthesis and reactions of tricyclo[9.3.0.04.8]tetradeca-4,7,11,14-tetraene
作者:Carsten Mink、Klaus Hafner
DOI:10.1016/s0040-4039(00)73119-4
日期:1994.6
The title compound 6 has been synthesized by condensation of 1,2-bis(trimethylsilylcyclopentadienyl)-ethane (3) with glyoxal sulfate to the tricyclic system 4 and following reduction as well as desilylation. Twofold deprotonation of 6 yields the dilithium compound 7, which was transformed into the pentafulvenophanes 8 and 9.