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  Bis(η⁵-cyclopentadienyl)- and bis(η⁵-indenyl)metallacycles of titanium and zirconium from methylenecyclopropanes by oxidative coupling

Binger, P., Müller, P., Podubrin, S., Albus, S., & Krüger, C. (2002). Bis(η⁵-cyclopentadienyl)- and bis(η⁵-indenyl)metallacycles of titanium and zirconium from methylenecyclopropanes by oxidative coupling. Journal of Organometallic Chemistry, 656(1-2), 288-298. doi:10.1016/S0022-328X(02)01472-9.

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 Creators:
Binger, P.1, Author              
Müller, P.2, Author
Podubrin, S.1, Author              
Albus, S.1, Author              
Krüger, C.3, Author              
Affiliations:
1Research Group Binger, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445596              
2Univ Kaiserslautern, Fachbereich Chem, D-67663 Kaiserslautern,; Germany;, ou_persistent22              
3Service Department Krüger (XRAY), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445624              

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Free keywords: methylenecyclopropane; titanocene(II) and zirconocene(II) complexes; bis(eta(5)-indenyl)zirconium complexes; [2+2] and [3+2] cycloadditions
 Abstract: Methylenecyclopropane (1a) reacts with bis(trimethylphosphane)titanocene (8) and (eta(2)-1- butene)(trimethylphosphane)zirconocene (12a) via olefin complexes; e.g. 9, in a [2+2] cycloaddition to afford the metallacyclopentane derivates 10, 13 and 14. In contrast, a [3+2] cycloaddition reaction is observed with bis(eta(5)- Indenyl)(eta(2)-1-butene)(trimethylphosphane)zirconium (12b) to furnish the 1-zircona-4-methylenecyclohexane 15. Similarly, reactions of the complexes 8 and 12a with benzylidenecyclopropane (1c) give the olefin complexes 9c and 20, while a direct reaction between the indenyl complex 12b with le occurs to furnish the 1-zircona-2- benzylidenecyclobutane complex 21b which was characterised by X-ray crystallography. (C) 2002 Elsevier Science B.V. All rights reserved.

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Language(s): eng - English
 Dates: 2002-08-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 19905
DOI: 10.1016/S0022-328X(02)01472-9
ISI: 000177456900037
 Degree: -

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Title: Journal of Organometallic Chemistry
  Alternative Title : J. Organomet. Chem.
Source Genre: Journal
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Pages: - Volume / Issue: 656 (1-2) Sequence Number: - Start / End Page: 288 - 298 Identifier: ISSN: 0022-328X