Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 782-793 |
| Seitenumfang | 12 |
| Fachzeitschrift | Chemistry - An Asian Journal |
| Jahrgang | 2 |
| Ausgabenummer | 6 |
| Publikationsstatus | Veröffentlicht - 23 Mai 2007 |
Abstract
The first cyclopentadienylalkylphosphane nickel chelate complexes are reported. The anionic ligand obtained by reaction of spiro[2.4]hepta-4,6-diene with lithium di-tert-butylphosphidc was treated with NiCl2 to yield [η5:κ1-(di-tert-butylphosphanylethyl) cyclopentadienyl]chloronickel(II). From this complex, some acetonitrile- stabilized cationic complexes were obtained by reaction with the respective silver salts in acetonitrile. Methyl- and alkynylnickel chelates were prepared by reaction of the chloronickel complex with methyllithium and by coppermediated coupling with terminal alkynes. respectively. Some of the complexes prepared were investigated by X-ray crystallography or cyclic voltammetry. The alkynylnickel chelates undergo cycloaddition reactions with ethoxycarbonylisothiocyanate or tetracyanoethylene, and the cyclobutenes obtained undergo ring opening to the corresponding dienes. The study includes an NMR spectroscopic investigation of the two conformers of one of these dienes.
ASJC Scopus Sachgebiete
- Biochemie, Genetik und Molekularbiologie (insg.)
- Biochemie
- Chemie (insg.)
- Organische Chemie
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in: Chemistry - An Asian Journal, Jahrgang 2, Nr. 6, 23.05.2007, S. 782-793.
Publikation: Beitrag in Fachzeitschrift › Übersichtsarbeit › Forschung › Peer-Review
}
TY - JOUR
T1 - The first cyclopentadienylalkylphosphane nickel chelates
T2 - Synthesis, structures, and reactions
AU - Hussain, Mazhar
AU - Albert, Dieter
AU - Wartchow, Rudolf
AU - Butenschön, Holger
PY - 2007/5/23
Y1 - 2007/5/23
N2 - The first cyclopentadienylalkylphosphane nickel chelate complexes are reported. The anionic ligand obtained by reaction of spiro[2.4]hepta-4,6-diene with lithium di-tert-butylphosphidc was treated with NiCl2 to yield [η5:κ1-(di-tert-butylphosphanylethyl) cyclopentadienyl]chloronickel(II). From this complex, some acetonitrile- stabilized cationic complexes were obtained by reaction with the respective silver salts in acetonitrile. Methyl- and alkynylnickel chelates were prepared by reaction of the chloronickel complex with methyllithium and by coppermediated coupling with terminal alkynes. respectively. Some of the complexes prepared were investigated by X-ray crystallography or cyclic voltammetry. The alkynylnickel chelates undergo cycloaddition reactions with ethoxycarbonylisothiocyanate or tetracyanoethylene, and the cyclobutenes obtained undergo ring opening to the corresponding dienes. The study includes an NMR spectroscopic investigation of the two conformers of one of these dienes.
AB - The first cyclopentadienylalkylphosphane nickel chelate complexes are reported. The anionic ligand obtained by reaction of spiro[2.4]hepta-4,6-diene with lithium di-tert-butylphosphidc was treated with NiCl2 to yield [η5:κ1-(di-tert-butylphosphanylethyl) cyclopentadienyl]chloronickel(II). From this complex, some acetonitrile- stabilized cationic complexes were obtained by reaction with the respective silver salts in acetonitrile. Methyl- and alkynylnickel chelates were prepared by reaction of the chloronickel complex with methyllithium and by coppermediated coupling with terminal alkynes. respectively. Some of the complexes prepared were investigated by X-ray crystallography or cyclic voltammetry. The alkynylnickel chelates undergo cycloaddition reactions with ethoxycarbonylisothiocyanate or tetracyanoethylene, and the cyclobutenes obtained undergo ring opening to the corresponding dienes. The study includes an NMR spectroscopic investigation of the two conformers of one of these dienes.
KW - Chelates
KW - Cycloaddition
KW - Cyclopentadienyl ligands
KW - Nickel
KW - Phosphane ligands
UR - http://www.scopus.com/inward/record.url?scp=34250664889&partnerID=8YFLogxK
U2 - 10.1002/asia.200700032
DO - 10.1002/asia.200700032
M3 - Review article
AN - SCOPUS:34250664889
VL - 2
SP - 782
EP - 793
JO - Chemistry - An Asian Journal
JF - Chemistry - An Asian Journal
SN - 1861-4728
IS - 6
ER -