124685-98-9Relevant articles and documents
Antiaromatic Compounds, 26. - A Cyclobutadienecarboxylate as a Hetero-1,3-diene in Diels-Alder Reactions with 2H-Azirines
Regitz, Manfred,Michels, Gisbert
, p. 927 - 933 (2007/10/02)
The cyclobutadienecarboxylic ester 1 adds 2H-azirines (2a-f) to yield the oxaazatricyclic compounds 4a-f.Under thermolysis conditions cleavage of isobutylene and formation of tricyclic ketones occurs (4a, c-e --> 7a-d).The Dewar pyridone 11 arises from th