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Catalytic systems based on cp2 zrx2 (X = cl, h), organoaluminum compounds and perfluorophenylboranes: Role of zr,zr-and zr,al-hydride intermediates in alkene dimerization and oligomerization
Publication type: Journal Article
Publication date: 2020-12-31
Catalysis
Physical and Theoretical Chemistry
Abstract
The activity and chemoselectivity of the Cp2ZrCl2-XAlBui2 (X = H, Bui) and [Cp2ZrH2]2-ClAlEt2 catalytic systems activated by (Ph3C)[B(C6F5)4] or B(C6F5)3 were studied in reactions with 1-hexene. The activation of the systems by B(C6F5)3 resulted in the selective formation of head-to-tail alkene dimers in up to 93% yields. NMR studies of the reactions of Zr complexes with organoaluminum compounds (OACs) and boron activators showed the formation of Zr,Zr- and Zr,Al-hydride intermediates, for which diffusion coefficients, hydrodynamic radii, and volumes were estimated using the diffusion ordered spectroscopy DOSY. Bis-zirconium hydride clusters of type x[Cp2ZrH2∙Cp2ZrHCl∙ClAlR2]∙yRnAl(C6F5)3−n were found to be the key intermediates of alkene dimerization, whereas cationic Zr,Al-hydrides led to the formation of oligomers.
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11
Total citations:
11
Citations from 2024:
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(27.27%)
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Parfenova L. V. et al. Catalytic systems based on cp2 zrx2 (X = cl, h), organoaluminum compounds and perfluorophenylboranes: Role of zr,zr-and zr,al-hydride intermediates in alkene dimerization and oligomerization // Catalysts. 2020. Vol. 11. No. 1. pp. 1-16.
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Parfenova L. V., Kovyazin P. V., Bikmeeva A. Kh., Palatov E. R. Catalytic systems based on cp2 zrx2 (X = cl, h), organoaluminum compounds and perfluorophenylboranes: Role of zr,zr-and zr,al-hydride intermediates in alkene dimerization and oligomerization // Catalysts. 2020. Vol. 11. No. 1. pp. 1-16.
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TY - JOUR
DO - 10.3390/catal11010039
UR - https://doi.org/10.3390/catal11010039
TI - Catalytic systems based on cp2 zrx2 (X = cl, h), organoaluminum compounds and perfluorophenylboranes: Role of zr,zr-and zr,al-hydride intermediates in alkene dimerization and oligomerization
T2 - Catalysts
AU - Parfenova, Lyudmila V.
AU - Kovyazin, Pavel V
AU - Bikmeeva, Almira Kh
AU - Palatov, Eldar R
PY - 2020
DA - 2020/12/31
PB - MDPI
SP - 1-16
IS - 1
VL - 11
SN - 2073-4344
ER -
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@article{2020_Parfenova,
author = {Lyudmila V. Parfenova and Pavel V Kovyazin and Almira Kh Bikmeeva and Eldar R Palatov},
title = {Catalytic systems based on cp2 zrx2 (X = cl, h), organoaluminum compounds and perfluorophenylboranes: Role of zr,zr-and zr,al-hydride intermediates in alkene dimerization and oligomerization},
journal = {Catalysts},
year = {2020},
volume = {11},
publisher = {MDPI},
month = {dec},
url = {https://doi.org/10.3390/catal11010039},
number = {1},
pages = {1--16},
doi = {10.3390/catal11010039}
}
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Parfenova, Lyudmila V., et al. “Catalytic systems based on cp2 zrx2 (X = cl, h), organoaluminum compounds and perfluorophenylboranes: Role of zr,zr-and zr,al-hydride intermediates in alkene dimerization and oligomerization.” Catalysts, vol. 11, no. 1, Dec. 2020, pp. 1-16. https://doi.org/10.3390/catal11010039.
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