Ethylene Bis(2-indenyl) Zirconocenes: A New Class of Diastereomeric Metallocenes for the (Co)Polymerization of α-Olefins
Тип публикации: Journal Article
Дата публикации: 2001-07-30
scimago Q2
wos Q1
БС1
SJR: 0.676
CiteScore: 5.1
Impact factor: 2.9
ISSN: 02767333, 15206041
Organic Chemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Краткое описание
Sequential additions of NaOEt and benzyl chloride (BzCl) to diethyl adipate in THF afforded EtOOCCH(Bz)CH2CH2CH(Bz)COOEt (3) in high yield via successive Dieckmann condensations. This was converted to CH2CH2(2-indene)2 (2) using standard synthetic methodology, from which 436 g of CH2CH2(2-indenyl)2ZrCl2 (1) was prepared. Incorporation of a 1-alkyl substituent gave rac and meso isomers CH2CH2(1-R-2-indenyl)2ZrCl2 (R = Me, 12r, 12m; R = Et, 14r, 14m). Methylation gave rac- and meso-CH2CH2(1-Me-2-indenyl)2ZrMe2 (15r, 15m) and CH2CH2(2-indenyl)2ZrMe2 (16). CH2CH2(4-Ph-2-indene)2 (20) was prepared similarly to 2 using 2-phenyl benzylbromide and diethyladipate/NaOEt, from which rac- and meso-CH2CH2(4-Ph-2-indenyl)2ZrCl2 (19r and 19m) were prepared. Alkylation of 19m gave meso-CH2CH2(4-Ph-2-indenyl)2ZrMe2 (23m). The 4-phenyl metallocenes rac- and meso-CH2CH2(1-Me-4-Ph-2-indenyl)2ZrCl2 (25r and 25m) were prepared via 20. C2-symmetric CH2CH2(1,3-Me2-2-indenyl)2ZrCl2 (29) was prepared to compare its polymerization ...
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ГОСТ
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Schaverien C. J. et al. Ethylene Bis(2-indenyl) Zirconocenes: A New Class of Diastereomeric Metallocenes for the (Co)Polymerization of α-Olefins // Organometallics. 2001. Vol. 20. No. 16. pp. 3436-3452.
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Schaverien C. J., Ernst R., Schut P., Dall'Occo T. Ethylene Bis(2-indenyl) Zirconocenes: A New Class of Diastereomeric Metallocenes for the (Co)Polymerization of α-Olefins // Organometallics. 2001. Vol. 20. No. 16. pp. 3436-3452.
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TY - JOUR
DO - 10.1021/om010160z
UR - https://doi.org/10.1021/om010160z
TI - Ethylene Bis(2-indenyl) Zirconocenes: A New Class of Diastereomeric Metallocenes for the (Co)Polymerization of α-Olefins
T2 - Organometallics
AU - Schaverien, Colin J
AU - Ernst, René
AU - Schut, Peter
AU - Dall'Occo, Tiziano
PY - 2001
DA - 2001/07/30
PB - American Chemical Society (ACS)
SP - 3436-3452
IS - 16
VL - 20
SN - 0276-7333
SN - 1520-6041
ER -
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@article{2001_Schaverien,
author = {Colin J Schaverien and René Ernst and Peter Schut and Tiziano Dall'Occo},
title = {Ethylene Bis(2-indenyl) Zirconocenes: A New Class of Diastereomeric Metallocenes for the (Co)Polymerization of α-Olefins},
journal = {Organometallics},
year = {2001},
volume = {20},
publisher = {American Chemical Society (ACS)},
month = {jul},
url = {https://doi.org/10.1021/om010160z},
number = {16},
pages = {3436--3452},
doi = {10.1021/om010160z}
}
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MLA
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Schaverien, Colin J., et al. “Ethylene Bis(2-indenyl) Zirconocenes: A New Class of Diastereomeric Metallocenes for the (Co)Polymerization of α-Olefins.” Organometallics, vol. 20, no. 16, Jul. 2001, pp. 3436-3452. https://doi.org/10.1021/om010160z.