Chemo-, regio- and stereoselectivity in steroids hydrogenation with Cu/Al2O3. Intra- and intermolecular hydrogen transfer reactions (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Chemo-, regio- and stereoselectivity in steroids hydrogenation with Cu/Al2O3. Intra- and intermolecular hydrogen transfer reactions (Articolo in rivista) (literal)

Anno

• 1991-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/S0167-2991(08)61117-9 (literal)

Alternative label

• Ravasio N., Gargano M., Quatraro V.P., Rossi, M. (1991)
  Chemo-, regio- and stereoselectivity in steroids hydrogenation with Cu/Al2O3. Intra- and intermolecular hydrogen transfer reactions
  in Studies in surface science and catalysis; Elsevier, Amsterdam (Paesi Bassi)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Ravasio N., Gargano M., Quatraro V.P., Rossi, M. (literal)

Pagina inizio

• 161 (literal)

Pagina fine

• 168 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 59 (literal)

Rivista

• Studies in surface science and catalysis (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 8 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• c (literal)

Note

• Scopu (literal)
• SCImago (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Centro C.N.R. sulle Metodologie Innovative di Sintesi Organiche, Dipartimento di Chimica dell'Università, via Amendola 173, 70126 BARI, Italy Centro C.N.R., Dipartimento di Chimica Inorganica e Metallorganica, Università di Milano, via Venezian 21, 20133 MILANO, Italy (literal)

Titolo

• Chemo-, regio- and stereoselectivity in steroids hydrogenation with Cu/Al2O3. Intra- and intermolecular hydrogen transfer reactions (literal)

Abstract

• The hydrogen transfer from different secondary alcohols to a steroidic conjugated enone and a saturated ketone in the presence of Cu/A/2O3 has been investigated. The stereochemical pathway of the reaction has been studied and the results are compared with those obtained by conventional molecular hydrogen addition in the presence of the same catalyst. While chemo- and regioselectivity are essentially unaffected by the hydrogen source, the stereoselectivity of the hydrogen addition to the conjugated olefinic moiety depends upon the alcohol used as hydrogen donor, and 5?:5? isomer ratios ranging between 48 and 85% were observed. In the second step of H2 addition, the reduction of the 3-keto-group, a strong effect of the donor molecule on the stereochemistry was observed moving from 2-propanoi to 2-octanol. However, an excess of the equatorial alcohol was obtained in every case. (literal)

Editore

• Elsevier (Editore)

Prodotto di

• Processi chimici per la bioraffineria (PM.P03.004.002) (Modulo)
• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)

Autore CNR

• MARIA NICOLETTA RAVASIO (Persona)

Insieme di parole chiave

• Keywords of "Chemo-, regio- and stereoselectivity in steroids hydrogenation with Cu/Al2O3. Intra- and intermolecular hydrogen transfer reactions" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Processi chimici per la bioraffineria (PM.P03.004.002) (Modulo)

Autore CNR di

• MARIA NICOLETTA RAVASIO (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Studies in surface science and catalysis (Rivista)

Editore di

• Elsevier (Editore)

Insieme di parole chiave di

• Keywords of "Chemo-, regio- and stereoselectivity in steroids hydrogenation with Cu/Al2O3. Intra- and intermolecular hydrogen transfer reactions" (Insieme di parole chiave)