428506-72-3Relevant articles and documents
Diels-Alder reactions of pyridinone o-quinodimethanes generated from substituted sulfolene[3,4-c]pyridin-4(1H)-ones
Govaerts, Tom C.,Vogels, Ilse A.,Compernolle, Frans,Hoornaert, Georges J.
, p. 5481 - 5494 (2007/10/03)
1-Benzyl-3-(bromomethyl)-2(1H)-pyrazinone was converted to [3,4-c] sulfolene pyridinone 8a and further (1- or 3-) substituted derivatives having a dienophilic side chain on the sulfolene ring. Thermolytic extrusion of sulfur dioxide from o-QDM precursor 8