Abstractmagnified imageTreatment of Z‐vinyl carbamates with dicyclopentadienyl(diethyl)zirconium [Et2ZrCp2] leads to cyclobutyl‐zirconocene derivatives in good yields and as a unique diastereoisomer. The reaction proceeds through a carbometalative ring‐expansion followed by an intramolecular migratory insertion.
Stereoselective Synthesis of Metalated Cyclobutyl Derivatives
作者:Einav Tsoglin、Helena Chechik、Guy Karseboom、Nicka Chinkov、Amnon Stanger、Ilan Marek
DOI:10.1002/adsc.200800719
日期:2009.5
Abstractmagnified imageTreatment of Z‐vinyl carbamates with dicyclopentadienyl(diethyl)zirconium [Et2ZrCp2] leads to cyclobutyl‐zirconocene derivatives in good yields and as a unique diastereoisomer. The reaction proceeds through a carbometalative ring‐expansion followed by an intramolecular migratory insertion.