A new preparative route to substituted carbazoles by benzannulation (Articolo in rivista)

Type
Label
  • A new preparative route to substituted carbazoles by benzannulation (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1055/s-2005-863741 (literal)
Alternative label
  • Serra S., Fuganti C. (2005)
    A new preparative route to substituted carbazoles by benzannulation
    in Synlett (Stuttg.)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Serra S., Fuganti C. (literal)
Pagina inizio
  • 809 (literal)
Pagina fine
  • 812 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR - ICRM Politecnico di MIlano (literal)
Titolo
  • A new preparative route to substituted carbazoles by benzannulation (literal)
Abstract
  • A new regioselective pathway to substituted carbazole derivatives is described here. According to this procedure substituted 2-alkoxycarbonyl-4-acetoxy-9-(p-toluenesulfonyl) carbazoles are obtained by treatment of substituted 6-[2-(p-toluenesulfonylamino)-aryl]-3-alkoxycarbonythex-3-en-5-ynoic acids with acetic anhydride in the presence of sodium acetate. The latter acids are prepared from the easily available substituted o-iodo-anilines by Sonogashira coupling with propargylic alcohol and Wittig reaction as the key steps. The described benzannulation reaction proceeds in regiospecific fashion and a range of substituents are tolerated. (literal)
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