http://www.cnr.it/ontology/cnr/individuo/prodotto/ID47883
Mono- and Dinuclear bioxazoline-Palladium complexes for the stereocontrolled synthesis of CO/Styrene polyketones (Articolo in rivista)
- Type
- Label
- Mono- and Dinuclear bioxazoline-Palladium complexes for the stereocontrolled synthesis of CO/Styrene polyketones (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/chem.200500410 (literal)
- Alternative label
Alessandro Scarel,[a]; Jerome Durand,[a]; Davide Franchi,[a]; Ennio Zangrando,[a];
Giovanni Mestroni,[a]; Carla Carfagna,[b]; Luca Mosca,[b]; Roberta Seraglia,[c];
Giambattista Consiglio,[d]; Barbara Milani*[a] (2005)
Mono- and Dinuclear bioxazoline-Palladium complexes for the stereocontrolled synthesis of CO/Styrene polyketones
in Chemistry - A European Journal; WILEY-V C H VERLAG GMBH, WEINHEIM (Germania)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Alessandro Scarel,[a]; Jerome Durand,[a]; Davide Franchi,[a]; Ennio Zangrando,[a];
Giovanni Mestroni,[a]; Carla Carfagna,[b]; Luca Mosca,[b]; Roberta Seraglia,[c];
Giambattista Consiglio,[d]; Barbara Milani*[a] (literal)
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- http://onlinelibrary.wiley.com/doi/10.1002/chem.200500410/abstract (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1-5,10 : Dipartimento di Scienze Chimiche,UniversitA di Trieste Via Licio Giorgieri 1, 34127 Trieste (Italy) /
6,7 : Istituto di Scienze Chimiche, UniversitA di Urbino Piazza Rinascimento 6, 61029 Urbino (Italy) /
8 : CNR, Istituto di Scienze e Tecnologie Molecolari Sez. di Padova Via Marzolo 1, 35020 Padova (Italy) /
9 : Eidgençssische Technische Hochschule Institut fIr Chemie- und Bioingenieurwissenschaften ETH-Hçnggerberg 8093 ZIrich (Switzerland) (literal)
- Titolo
- Mono- and Dinuclear bioxazoline-Palladium complexes for the stereocontrolled synthesis of CO/Styrene polyketones (literal)
- Abstract
- Abstract: The coordination chemistry
of the chiral bioxazoline ligand
(4S,4'S)-2,2'-bis(4-isopropyl-4,5-dihydrooxazole)
to PdII provides evidence
that the ligand bonding can occur
either through chelation of one PdII ion
leading to a mononuclear species with
the expected cis geometry, or by
double bridging of two PdII ions giving
a dinuclear complex with trans geometry.
The species in solution are identified
by 1H NMR spectroscopy. Both
the mononuclear and the dinuclear
complexes promote the CO/styrene copolymerization,
yielding the corresponding
polyketone with a fully or a
predominantly isotactic microstructure,
depending on the reaction medium.
The nature of the anion present in the
palladium precatalysts affects the polyketone
stereochemistry. MALDI-TOF
analysis of the copolymers synthesized
reveals the presence of p-hydroxyphenolic
end-groups, thus confirming and
explaining the role of 1,4-hydroquinone
as a molecular weight regulator. (literal)
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