作者:Elisa Bandini、Gianfranco Favi、Giorgio Martelli、Mauro Panunzio、Giovanni Piersanti
DOI:10.1021/ol005633x
日期:2000.4.1
Conrotatory ring closure of 1-halo-3-aza-4-alkyl-1,3-dienes in refluxing toluene gives rise to 3-halo-4-aryl-2-azetidinones in satisfactory yields. Dehalogenation of the resulting beta-lactams by tris(trimethylsilyl)silane furnished 3-unsubstituted azetidinones, valuable intermediates in the synthesis of biologically active compounds.