Synthesis and conversions of metallocycles. 22. NMR studies of the mechanism of Cp2ZrCl2-catalyzed cycloalumination of olefins with triethylaluminum to form aluminacyclopentanes
L M Khalilov
1, 2
,
L V Parfenova
1, 2
,
S.V. Rusakov
1, 2
,
A G Ibragimov
1, 2
,
U M Dzhemilev
1, 2
Publication type: Journal Article
Publication date: 2000-01-01
scimago Q3
SJR: 0.305
CiteScore: 2.8
Impact factor: —
ISSN: 10665285, 15739171
General Chemistry
Abstract
The mechanism of cycloalumination of olefins under the action of AlEt3 in the presence of Cp2ZrCl2 giving rise to aluminacyclopentanes was investigated by dynamic 1H and 13C NMR spectroscopy. The bimetallic complex Cp2ZrEtCl–AlEt3 is formed initially and is converted into the bridged complex Cp2Zr(Cl)CH2CH2AlEt2 as a result of beta-hydride shift and elimination of the ethane molecule. The resulting complex adds a molecule of the initial olefin yielding aluminacyclopentanes. Under the action of Et2AlCl in the presence of an excess of AlEt3, zirconacyclopentanes give rise to intermediate bimetallic complexes stable at -70 °C. Under the reaction conditions, the latter compounds are converted into aluminacyclopentanes.
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Total citations:
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Citations from 2024:
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(6.25%)
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Khalilov L. M. et al. Synthesis and conversions of metallocycles. 22. NMR studies of the mechanism of Cp2ZrCl2-catalyzed cycloalumination of olefins with triethylaluminum to form aluminacyclopentanes // Russian Chemical Bulletin. 2000. Vol. 49. No. 12. pp. 2051-2058.
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Khalilov L. M., Parfenova L. V., Rusakov S., Ibragimov A. G., Dzhemilev U. M. Synthesis and conversions of metallocycles. 22. NMR studies of the mechanism of Cp2ZrCl2-catalyzed cycloalumination of olefins with triethylaluminum to form aluminacyclopentanes // Russian Chemical Bulletin. 2000. Vol. 49. No. 12. pp. 2051-2058.
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RIS
Copy
TY - JOUR
DO - 10.1023/A:1009536328369
UR - https://doi.org/10.1023/A:1009536328369
TI - Synthesis and conversions of metallocycles. 22. NMR studies of the mechanism of Cp2ZrCl2-catalyzed cycloalumination of olefins with triethylaluminum to form aluminacyclopentanes
T2 - Russian Chemical Bulletin
AU - Khalilov, L M
AU - Parfenova, L V
AU - Rusakov, S.V.
AU - Ibragimov, A G
AU - Dzhemilev, U M
PY - 2000
DA - 2000/01/01
PB - Springer Nature
SP - 2051-2058
IS - 12
VL - 49
SN - 1066-5285
SN - 1573-9171
ER -
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BibTex (up to 50 authors)
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@article{2000_Khalilov,
author = {L M Khalilov and L V Parfenova and S.V. Rusakov and A G Ibragimov and U M Dzhemilev},
title = {Synthesis and conversions of metallocycles. 22. NMR studies of the mechanism of Cp2ZrCl2-catalyzed cycloalumination of olefins with triethylaluminum to form aluminacyclopentanes},
journal = {Russian Chemical Bulletin},
year = {2000},
volume = {49},
publisher = {Springer Nature},
month = {jan},
url = {https://doi.org/10.1023/A:1009536328369},
number = {12},
pages = {2051--2058},
doi = {10.1023/A:1009536328369}
}
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MLA
Copy
Khalilov, L. M., et al. “Synthesis and conversions of metallocycles. 22. NMR studies of the mechanism of Cp2ZrCl2-catalyzed cycloalumination of olefins with triethylaluminum to form aluminacyclopentanes.” Russian Chemical Bulletin, vol. 49, no. 12, Jan. 2000, pp. 2051-2058. https://doi.org/10.1023/A:1009536328369.
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