111197-34-3Relevant academic research and scientific papers
FUSED β-LACTAMS VIA INTRAMOLECULAR DIPOLAR CYCLOADDITION
Keshava Murthy, K. S.,Hassner, Alfred
, p. 97 - 100 (1987)
Two routes were examined that permit conversion of 4-vinyl-2-azetidinones 7 via intramolecular nitrile oxide-olefin or azide-olefin cycloaddition into tricyclic β-lactams.Stereoselectivity in these cycloadditions as well as further chemoselective transformations of the products were shown to be dependent on the size of the newly formed ring.
