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Titolo:
Synthesis and stereochemical study of new complexes of Pd and Pt with chiral dithioether ligands
Autore:
Dieguez, M; Ruiz, A; Masdeu-Bulto, AM; Claver, C;
Indirizzi:
Univ Rovira & Virgili, Fac Quim, Dept Quim Fis & Inorgan, Tarragona 43005,Spain Univ Rovira & Virgili Tarragona Spain 43005 organ, Tarragona 43005,Spain
Titolo Testata:
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
fascicolo: 22, , anno: 2000,
pagine: 4154 - 4159
SICI:
1470-479X(2000):22<4154:SASSON>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
ASYMMETRIC HYDROGENATION; IRIDIUM COMPLEXES; CATALYST PRECURSORS; PALLADIUM; RHODIUM; SULFUR; HYDROFORMYLATION; REACTIVITY; PLATINUM; STYRENE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Dieguez, M Univ Rovira & Virgili, Fac Quim, Dept Quim Fis & Inorgan, Pl Imperial Tarraco 1, Tarragona 43005, Spain Univ Rovira & Virgili Pl Imperial Tarraco 1 Tarragona Spain 43005
Citazione:
M. Dieguez et al., "Synthesis and stereochemical study of new complexes of Pd and Pt with chiral dithioether ligands", J CHEM S DA, (22), 2000, pp. 4154-4159

Abstract

New palladium(II) and platinum(II) complexes with two families of chiral dithioether ligands, (-)-1-benzyl-3,4-bis(methylsulfanyl)pyrrolidine (-)-degusMe(2), (-)-1-benzyl-3,4-bis(isopropylsulfanyl)pyrrolidine (-)-degusPr(2)(i), (+)-1-benzyl-3,4-bis(phenylsulfanyl)pyrrolidine (+)-degusPh(2), (-)-2,2-dimethyl-4,5-bis(methylsulfanylmethyl)-1,3-dioxolane (-)-diosMe(2) and (-)-4,5-bis(isopropylsulfanylmethyl)-2,2-dimethyl-1,3-dioxolane (-)-diosPr(2)(i), have been prepared and characterised by NMR. The complexes [PdCl2{(-)-degusMe(2)}], [PdCl2{(+)-degusPh(2)}] and [PdCl2{(-)-diosMe(2)}] show a mixture of two diastereomers in solution at room temperature. VT-NMR indicates that there is no interconversion between diastereomers at room temperature. Complex [Pt(cod){(-)-diosMe(2)}][BF4](2) is extremely fluxional and its diastereomers did not show isolated NMR resonances even at -90 degreesC. The complexes [PdCl2{(-)-degusPr(2)(i)}], [PdCl2{(-)-diosPr(2)(i)}] and [Pt(cod){(-)-diosPr(2)(i)}][BF4](2), which contain a more hindered ligand, seem tobe well suited for use in enantioselective catalysis because only one diastereomer is present.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 09:31:05