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Zirconocene dipicolinate and related dicarboxylate complexes : coordination geometries and reactivities

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Niemann_239356.pdf
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1993

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Niemann, Uwe
Diebold, Josef
Troll, Carsten
Rief, Ursula

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Journal of Organometallic Chemistry. 1993, 456(2), pp. 195-204. ISSN 0022-328X. Available under: doi: 10.1016/0022-328X(93)80426-C

Zusammenfassung

Monomeric zirconocene dipicolinate complexes, which have a formal 18-electron configuration, are stable towards water and relatively inert against aqueous HCl. Methylmagnesium chloride attacks these complexes at the dipicolinate carboxyl groups and subsequent reaction with aqueous HCl gives 2,6-diacetyl pyridine and the zirconocene dichloride. Other dicarboxylates, such as 3,4-dimethoxyfurane-2,5-dicarboxylate or isophthalate, form binuclear zirconocene complexes, in which one bidentate and one monodentate carboxylate ligand generate a formal 18-electron configuration. These complexes react with methylmagnesium chloride to give the respective zirconocene dimethyl complexes, i.e. by normal replacement of C=O bonds by C-CH3 bonds.

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540 Chemie

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ISO 690NIEMANN, Uwe, Josef DIEBOLD, Carsten TROLL, Ursula RIEF, Hans-Herbert BRINTZINGER, 1993. Zirconocene dipicolinate and related dicarboxylate complexes : coordination geometries and reactivities. In: Journal of Organometallic Chemistry. 1993, 456(2), pp. 195-204. ISSN 0022-328X. Available under: doi: 10.1016/0022-328X(93)80426-C
BibTex
@article{Niemann1993Zirco-23935,
  year={1993},
  doi={10.1016/0022-328X(93)80426-C},
  title={Zirconocene dipicolinate and related dicarboxylate complexes : coordination geometries and reactivities},
  number={2},
  volume={456},
  issn={0022-328X},
  journal={Journal of Organometallic Chemistry},
  pages={195--204},
  author={Niemann, Uwe and Diebold, Josef and Troll, Carsten and Rief, Ursula and Brintzinger, Hans-Herbert}
}
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