Synthesis of 2-chromanol by hydroformylation of 2-hydroxystyrene derivatives (Articolo in rivista)

Type
Label
  • Synthesis of 2-chromanol by hydroformylation of 2-hydroxystyrene derivatives (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Botteghi C., Paganelli S., Moratti F., Marchetti M., Lazzaroni R., Settambolo R., Piccolo O. (2003)
    Synthesis of 2-chromanol by hydroformylation of 2-hydroxystyrene derivatives
    in Journal of molecular catalysis. A, Chemical (Print)
    (literal)
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  • Botteghi C., Paganelli S., Moratti F., Marchetti M., Lazzaroni R., Settambolo R., Piccolo O. (literal)
Pagina inizio
  • 147 (literal)
Pagina fine
  • 156 (literal)
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  • 200 (literal)
Rivista
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  • ICCOM - Sezione di Pisa (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • Dipartimento di chimica, Università Ca' Foscari di Venezia, Venezia; idem; idem; Istituto di chimica biomolecolare-CNR, sez Sassari, Sassari; Dipartimento di chimica e chimica industriale; ide; Studio di consulenza scientifica, Sirtori (LC) (literal)
Titolo
  • Synthesis of 2-chromanol by hydroformylation of 2-hydroxystyrene derivatives (literal)
Abstract
  • 2-Benzyloxy- and 2-tosyloxystryrene were hydroformylated under different reaction conditions with the aim to obtain the corresponding linear aldehydes, valuable intermediates to 2-chromanol, a structural moiety present in several interesting therapeutically active molecules. The best results were obtained by using the catalytic precursor Pt(Xantphos)Cl2 in toluene or the water soluble catalytic system Rh(CO)2acac/Xantphos(SO3Na)2 in the biphasic medium water/toluene. Rather good regioselectivities were also achieved employing the unmodified complex Rh4(CO)12 at high temperature and low pressure for very short reaction times: unfortunately the chemioselectivity of the process was not satisfactory, due to the extensive formation of the substrate hydrogenation product. (literal)
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