Programmed Polyene Cyclization Enabled by Chromophore Disruption
作者:Megan M. Solans、Vitalii S. Basistyi、James A. Law、Noah M. Bartfield、James H. Frederich
DOI:10.1021/jacs.2c02144
日期:2022.4.13
A new polyenecyclization strategy exploiting β-ionyl derivatives was developed. Photoinduced deconjugation of the extended π-system within these chromophores unveils a contrathermodynamic polyene that engages in a Heck bicyclization to afford [4.4.1]-propellanes. This cascade improves upon the limited regioselectivity achieved using existing biomimetic tactics and tolerates both electron-rich and