The influence of mineral catalysts on racemization of secondary alcohols under pyrolytic temperatures (Articolo in rivista)

Type

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

Label

• The influence of mineral catalysts on racemization of secondary alcohols under pyrolytic temperatures (Articolo in rivista) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

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

• 10.1016/j.jaap.2010.09.005 (literal)

Alternative label

• Y. Keheyan, C. Montesano (2010)
  The influence of mineral catalysts on racemization of secondary alcohols under pyrolytic temperatures
  in Journal of analytical and applied pyrolysis (Print)
  (literal)

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

• Y. Keheyan, C. Montesano (literal)

Pagina inizio

• 286 (literal)

Pagina fine

• 293 (literal)

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

• 89 (literal)

Rivista

• Journal of analytical and applied pyrolysis (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• CNR (literal)

Titolo

• The influence of mineral catalysts on racemization of secondary alcohols under pyrolytic temperatures (literal)

Abstract

• Pyrolysis of 1-phenylethanol (PE) enantiomers I(S) and (R)I with and without catalysts at different temperatures (200-700 degrees C) has been carried out. In the presence of catalysts the partial racemization (<= 25%) and formation of products like styrene, acetophenone, benzaldehyde and chiral benzylic ethers formation have been detected. Without a catalyst almost no racemization was observed and products formation was not appreciable. The kinetic of racemization has been calculated and a tentative mechanism has been proposed. Pyrolysis of (S)-1-phenylpropanol (PPEs) and (S)-1-phenyl-2,2,2-trifluoroethanol (FEs) have also carried out at 500 degrees C on ilmenite. The effect of the fluorine atoms in FEs has been evaluated by comparing the results with the pyrograms of nonfluorinated analogues. Using the trend of the enantiomeric excess in function of the temperature, a new approach to calculate the rate of racemization is proposed (literal)

Prodotto di

• Aspetti chimico fisici di processi fondamentali e reattività per la chimica sostenibile (PM.P05.004.008) (Modulo)
• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)

Autore CNR

• YEGHIS KEHEYAN (Persona)

Incoming links:

Prodotto

• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)
• Aspetti chimico fisici di processi fondamentali e reattività per la chimica sostenibile (PM.P05.004.008) (Modulo)

Autore CNR di

• YEGHIS KEHEYAN (Persona)

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

• Journal of analytical and applied pyrolysis (Rivista)