Synthesis of Phosphonobenzocarbacephems by Intramolecular Radical Cyclization of Haloaryl-Substituted β-Lactams

Autor: Sarah Van der Jeught, Christian V. Stevens, Kurt G. R. Masschelein
Rok vydání: 2010
Předmět:
Zdroj: European Journal of Organic Chemistry. 2010:1333-1338
ISSN: 1099-0690
1434-193X
DOI: 10.1002/ejoc.200901351
Popis: A series of benzo-fused tricyclic β-lactams, most of them phosphonobenzocarbacephems, were prepared in a straightforward way starting from phosphonoazadienes. In this paper, the synthetic route including a Staudinger reaction towards the β-lactams, followed by radical ring closing with tributyltin hydride and AIBN, which resulted in the envisaged tricyclic compounds, is reported.
Databáze: OpenAIRE