Synthesis of the enantiomeric forms of alpha- and gamma-damascone starting from commercial racemic alpha-ionone (Articolo in rivista)

Type
Label
  • Synthesis of the enantiomeric forms of alpha- and gamma-damascone starting from commercial racemic alpha-ionone (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.tetasy.2006.05.024 (literal)
Alternative label
  • Serra S., Fuganti C. (2006)
    Synthesis of the enantiomeric forms of alpha- and gamma-damascone starting from commercial racemic alpha-ionone
    in Tetrahedron: asymmetry (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Serra S., Fuganti C. (literal)
Pagina inizio
  • 1573 (literal)
Pagina fine
  • 1580 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 17 (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
  • Synthesis of the enantiomeric forms of alpha- and gamma-damascone starting from commercial racemic alpha-ionone (literal)
Abstract
  • A straightforward synthesis of both enantiomers of alpha- and gamma-damascone is described. The title compounds were prepared by a divergent pathway starting from the enantiomeric forms of (6RS,7SR,9RS)-7-hydroxy-7,8-dihydro-alpha-ionol and of (6RS,7SR,9RS)-7hydroxy-7.8-dihydro-gamma-ionol. These building blocks were obtained from racemic alpha-ionone in four and five steps, respectively. The 7-hydroxy group was introduced by regio- and diastereoselective epoxidation of the conjugated double bond followed by reductive opening of the oxirane ring. The hydroxy-ketone obtained was reduced diastereo selectively to trans-alpha-diol that could be converted to the trans-gamma-diol by photochemical isomerization. Both diols were then resolved by lipase-mediated acetylation. (literal)
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