http://www.cnr.it/ontology/cnr/individuo/prodotto/ID16761
Regioselective propylene dimerization by tetrahedral (imino)pyridine CoII dichloride complexes activated by MAO (Articolo in rivista)
- Type
- Label
- Regioselective propylene dimerization by tetrahedral (imino)pyridine CoII dichloride complexes activated by MAO (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.molcata.2007.07.016 (literal)
- Alternative label
Claudio Bianchini,
Giuliano Giambastiani,
Itzel Guerrero Rios,
Andrea Meli,
Anna M. Segarra,
Alessandro Toti,
Francesco Vizza (2007)
Regioselective propylene dimerization by tetrahedral (imino)pyridine CoII dichloride complexes activated by MAO
in Journal of molecular catalysis. A, Chemical (Online); Elsevier Science Publishers, Amsterdam (Paesi Bassi)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Claudio Bianchini,
Giuliano Giambastiani,
Itzel Guerrero Rios,
Andrea Meli,
Anna M. Segarra,
Alessandro Toti,
Francesco Vizza (literal)
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- Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Area di Ricerca CNR di Firenze, via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy (literal)
- Titolo
- Regioselective propylene dimerization by tetrahedral (imino)pyridine CoII dichloride complexes activated by MAO (literal)
- Abstract
- On activation by MAO, tetrahedral CoII dichloride complexes supported by 6-organyl-2-(imino)pyridine ligands generate active catalysts for the dimerisation of propylene to hexenes. The nature of the substituent on the 6-position of the pyridine ring influences both the selectivity and activity of the catalysts. The 6-thienyl complexes CoCl2N22Th and CoCl2N22BT dimerise propylene prevalently to linear hexenes through a propagation pathway involving 1,2-insertion into Co-H, followed by 2,1-insertion and ?-hydride elimination. The 6-phenyl complex CoCl2N2Ph is much less active and selective producing linear hexenes and methyl branched pentenes in comparable yields. The same activity trend and selectivity is observed for the dimerisation of 1-hexene, which however is one order of magnitude slower as compared to the dimerisation of propylene. (literal)
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