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Titolo:
ACTIVATION OF SIGMA(C-H) BONDS IN FERROCENYL-IMINES AND BIS(FERROCENYL)-IMINES PROMOTED BY PALLADIUM
Autore:
BOSQUE R; LOPEZ C; SALES J; TRAMUNS D; SOLANS X;
Indirizzi:
UNIV BARCELONA,DEPT QUIM INORGAN,DIAGONAL 647 E-08028 BARCELONA SPAIN UNIV BARCELONA,DEPT QUIM INORGAN E-08028 BARCELONA SPAIN UNIV BARCELONA,DEPT CRISTALLOG MINERAL & DIPOSITS MINERALS E-08028 BARCELONA SPAIN
Titolo Testata:
Journal of the Chemical Society. Dalton transactions
fascicolo: 14, , anno: 1995,
pagine: 2445 - 2452
SICI:
0300-9246(1995):14<2445:AOSBIF>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAY CRYSTAL-STRUCTURE; TRANSITION-METAL COMPLEXES; LIGAND-EXCHANGE REACTIONS; CYCLOPALLADATED COMPOUNDS; MOLECULAR-STRUCTURE; N-BENZYLIDENEAMINES; PD(II) COMPLEXES; REDUCTION; NITROGEN; PATHWAYS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
60
Recensione:
Indirizzi per estratti:
Citazione:
R. Bosque et al., "ACTIVATION OF SIGMA(C-H) BONDS IN FERROCENYL-IMINES AND BIS(FERROCENYL)-IMINES PROMOTED BY PALLADIUM", Journal of the Chemical Society. Dalton transactions, (14), 1995, pp. 2445-2452

Abstract

Ferrocenylimines of general formula [Fe(eta(5)-C5H5){eta(5)-C5H4CH2CH2N=CR(R')}] [R = H, R' = Ph 1a, C6H4Cl-2 1b, C6H3Cl2-2,6 1c, C(6)H(2)Me(3)-2,4,6 1d or (eta(5)-C5H4)Fe(eta(5)-C5H5) 1e, R = Me, R' = (eta(5)-C5H4) Fe(eta(5)-C5H5) 1f] were prepared by condensation of 2-ferrocenylethylamine and the corresponding aldehyde (1a-1e) or acetylferrocene(1f). Cyclopalladation reactions of these substrates gave different kinds of metallacycle depending on the nature of the ligand. In particular, endocyclic five-membered palladacycles containing a sigma(Pd-C-sp2,C-phenyl) or a of sigma(Pd-C-sp2,C-ferrocene) were obtained from 1a,1b and 1e, 1f respectively. However, for the ferrocenylimines in which the ortho positions of the aryl ring are blocked by either chlorine (1c) or methyl (1d) groups, mixtures of palladated compounds containing a sigma(Pd-C-sp1,C-ferrocene) and a sigma(Pd-(csp2,phenyl)) (for 1c)or a sigma(Pd-C-sp3,C-aliphatic) bond (for 1d) were obtained. The molecular structure of H=NCH2CH2(eta(5)-C5H4)Fe(eta(5)-C5H5)}Cl(PPh(3))]. CH2Cl2 was determined by X-ray crystallography: triclinic, space group <P(1)over bar>, with a = 9.995(1),b = 11.308(2), c=15.747(2) Angstrom, alpha=96.85(1), beta=99.05(1) and gamma=95.99(1)degrees. This confirms the formation of a five-membered palladacycle fused with the phenyl ring.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 09:15:14