Russian Chemical Bulletin

, том 49 , издание 12 , страницы 2051-2058

Synthesis and conversions of metallocycles. 22. NMR studies of the mechanism of Cp2ZrCl2-catalyzed cycloalumination of olefins with triethylaluminum to form aluminacyclopentanes

Тип публикации: Journal Article

Дата публикации: 2000-01-01

Springer Nature

Russian Chemical Bulletin

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SJR: 0.305

CiteScore: 2.8

Impact factor: 1.7

ISSN: 10665285, 15739171

DOI: 10.1023/A:1009536328369

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General Chemistry

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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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Journal of Organometallic Chemistry	Journal of Organometallic Chemistry, 5, 31.25% Journal of Organometallic Chemistry 5 публикаций, 31.25%
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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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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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@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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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.