T. Govaerts, Ilse A. Vogels, F. Compernolle
Jan 28, 2002
Citations
0
Influential Citations
8
Citations
Journal
Tetrahedron Letters
Abstract
2(1H)-Pyrazinones were converted into [3,4-b] and [3,4-c] sulfolene pyridinones 4 and 5, serving as precursors for the corresponding 3,4- and 5,6-dimethylene 2(1H)-pyridinone ortho-quinodimethanes. These were trapped by in situ reaction with dienophiles. Tethering of 4 also enabled intramolecular cycloaddition.