Divergent reactivity of alpha-oximino carbenoids: facile access to 2-isoxazolines and 2H-azirines

Mild catalytic reaction conditions for the synthesis of 2-isoxazolines and 2H-azirines have been developed via carbenoids derived from ??-oximino diazo compounds. This has been utilized in the one-pot synthesis of pyrroles in the presence of 1,3-dicarbonyl compounds.close161