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Thermally Stable Dialkylzirconocenes with β-Hydrogens. Synthesis and Diastereoselectivity

Wendt, Ola F. and Bercaw, John E. (2001) Thermally Stable Dialkylzirconocenes with β-Hydrogens. Synthesis and Diastereoselectivity. Organometallics, 20 (18). pp. 3891-3895. ISSN 0276-7333. doi:10.1021/om0102910.

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Alkylation of Cp^r_2ZrCl_2 (Cpr = Cp (η^5-C_5H_5), Cp‘ (η^5-C_5H_4Me), Cp^* (η^5-C_5Me_5)) and CpCp^*Zr(CH_3)Cl with 1-lithio-2-methylpentane (R^1Li) gives the corresponding dialkylzirconocenes Cp^r_2ZrR^1_2 and CpCp^*Zr(CH_3)R^1, in high yields. Such alkyls have unprecedented thermal stabilities, especially for the CpCp^* ligand framework. The diastereomers of the Cp^r_2ZrR^1_2 complexes are formed in a statistical distribution, whereas the diastereomers of CpCp^*Zr(CH_3)R^1 form in a 2:3 ratio.

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Additional Information:© 2001 American Chemical Society. Received 9 April 2001. Published online 8 August 2001. Published in print 1 September 2001. This work has been supported by the USDOE Office of Basic Energy Sciences (Grant No. DE-FG03-85ER13431) and ExxonMobil Chemical Co. O.F.W. thanks The Wenner-Gren Foundations, The Fulbright Commission, and The Royal Physiographic Society in Lund, Sweden, for postdoctoral fellowships.
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG03-85ER13431
ExxonMobil Chemical Co.UNSPECIFIED
Wenner-Gren FoundationUNSPECIFIED
Fullbright CommissionUNSPECIFIED
Royal Physiographic Society (Sweden)UNSPECIFIED
Issue or Number:18
Record Number:CaltechAUTHORS:20170725-102245085
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Official Citation:Thermally Stable Dialkylzirconocenes with β-Hydrogens. Synthesis and Diastereoselectivity Ola F. Wendt and John E. Bercaw Organometallics 2001 20 (18), 3891-3895 DOI: 10.1021/om0102910
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:79330
Deposited By: Ruth Sustaita
Deposited On:25 Jul 2017 17:35
Last Modified:15 Nov 2021 17:47

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