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Titolo:
Transition metal complexes of derivatized chiral dihydro1,2,4-triazin-6-ones. Part I. Nickel(II) complex of (D)-3-acetyl-5-benzyl-1-phenyl-4,5-dihydro-1,2,4-triazin-6-one oxime. An instance of a carbon-carbon coupling reaction
Autore:
Abushamleh, AS; El-Abadelah, MM; Mossmer, CM;
Indirizzi:
Univ Jordan, Fac Sci, Dept Chem, Amman, Jordan Univ Jordan Amman JordanUniv Jordan, Fac Sci, Dept Chem, Amman, Jordan Univ Tubingen, Inst Anorgan Chem, D-72076 Tubingen, Germany Univ TubingenTubingen Germany D-72076 n Chem, D-72076 Tubingen, Germany Hashemite Univ, Fac Arts & Sci, Dept Chem, Zarka, Jordan Hashemite Univ Zarka Jordan v, Fac Arts & Sci, Dept Chem, Zarka, Jordan
Titolo Testata:
HETEROCYCLES
fascicolo: 5, volume: 53, anno: 2000,
pagine: 1155 -
SICI:
0385-5414(20000501)53:5<1155:TMCODC>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
HETEROCYCLES;
Keywords:
bis-oximato Ni(II) complex; x-ray crystal structure; template enact synthesis; carbon-nitrogen pi-making;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: El-Abadelah, MM Univ Jordan, Fac Sci, Dept Chem, Amman, Jordan Univ Jordan Amman Jordan Sci, Dept Chem, Amman, Jordan
Citazione:
A.S. Abushamleh et al., "Transition metal complexes of derivatized chiral dihydro1,2,4-triazin-6-ones. Part I. Nickel(II) complex of (D)-3-acetyl-5-benzyl-1-phenyl-4,5-dihydro-1,2,4-triazin-6-one oxime. An instance of a carbon-carbon coupling reaction", HETEROCYCLE, 53(5), 2000, pp. 1155

Abstract

The reaction of (D)-3-acetyl-5-benzyl-1-phenyl-4,5-dihydro-1,2,4-triazin-6-one oxime (2) with nickel acetate in refluxing ethanol afforded the respective square planar Ni(II) complex. This is evidenced from an X-Ray study which reveals that the Ni(II) ion is coordinated to the ring N(4) and oxime nitrogen atoms. The crystallographic data of the complex (3) also unravelledthat the nickel-complexation has led to the formation of one pi-bond across the N(14)-C(15) bond and one sigma-bond between a benzylic carbon atom ofone ligand and the chiral (C5) carbon atom of the other ligand in the bis-ligand complex (3). Evidently, the complexed Ni(II) ion plays a template effect role in initiating such a cascade of pi- and sigma-bond forming reactions. H-1-, C-13-NMR and FD-MS spectral data of 3 are in full agreement withits molecular structure.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 16:06:57