Oxidation of Natural Targets by Dioxiranes. 6. On the Direct Regio- and Siteselective Oxyfunctionalization of Estrone and of 5alpha-Androstane Steroid Derivatives (Articolo in rivista)

Type
Label
  • Oxidation of Natural Targets by Dioxiranes. 6. On the Direct Regio- and Siteselective Oxyfunctionalization of Estrone and of 5alpha-Androstane Steroid Derivatives (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.tetlet.2008.07.042 (literal)
Alternative label
  • D'Accolti L., Fusco C., Lampignano G., Capitelli F., Curci R. (2008)
    Oxidation of Natural Targets by Dioxiranes. 6. On the Direct Regio- and Siteselective Oxyfunctionalization of Estrone and of 5alpha-Androstane Steroid Derivatives
    in Tetrahedron letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D'Accolti L., Fusco C., Lampignano G., Capitelli F., Curci R. (literal)
Pagina inizio
  • 5614 (literal)
Pagina fine
  • 5617 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0040403908012975 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 49 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Università di Bari A. Moro, Via Orabona 4, 70126 Bari, Italy. ICCOM-CNR, UOS Bari, (literal)
Titolo
  • Oxidation of Natural Targets by Dioxiranes. 6. On the Direct Regio- and Siteselective Oxyfunctionalization of Estrone and of 5alpha-Androstane Steroid Derivatives (literal)
Abstract
  • Using methyl(trifluoromethyl)dioxirane (1b), 3beta,6alpha,17beta-triacetoxy-5alpha-androstane (6) could be selectively transformed into its C-14 hydroxy derivative (7) and into the valuable C-12 ketone steroid (8), in high yields under mild reaction conditions. Similarly, the oxidation of 3alpha-estrone acetate (4) with 1b was carried out to yield selectively the steroid C-9 hydroxy derivative (5). The high regio- and site- selectivity attained demonstrates that the powerful dioxirane 1b is the reagent of choice to synthesize valuable oxyfunctionalized steroid derivatives (literal)
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