Nucleophilic Catalysis via Phosphine Conjugate Addition: Vinyl Sulfones as Reacting Partners in Catalytic Cross-Michael Cycloisomerization
作者:Michael J. Krische、Ana Liza Luis
DOI:10.1055/s-2004-831191
日期:——
Vinylsulfones serve as highly effective reacting partners in tributylphosphine catalyzed cross-Michael cycloisomerization. In all cases examined, the vinylsulfone moiety exclusively serves as the Michael acceptor to provide 5- and 6-membered ring products as single constitutional isomers in good to excellent yields.