Selective mono- and dimetallation of a group 3 sandwich complex

Antonio J. Martínez-Martínez, Alan R. Kennedy, Valerie Paprocki, Felipe Fantuzzi, Rian D. Dewhurst, Charles T. O'Hara, Holger Braunschweig, Robert E. Mulvey

Research output: Contribution to journalArticle

Abstract

The scandium Cp/COT hybrid sandwich compound [(η 5-C 5H 5)Sc(η 8-C 8H 8)] is resistant to metallation via conventional alkyllithium and lithium amide bases. In this work, clean, selective, stoichiometric and high-yielding mono- and dimetallation is accomplished using tandem trans-metal-trapping (TMT) involving LiTMP and iBu 2AlTMP with deprotonation occurring selectively at the Cp and Cp/COT rings respectively, providing the first examples of selective metallation of a sandwich complex featuring a group 3 element.

LanguageEnglish
Pages9677-9680
Number of pages4
JournalChemical Communications
Volume55
Issue number65
Early online date19 Jul 2019
DOIs
Publication statusPublished - 21 Aug 2019

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Scandium
Deprotonation
Lithium
Amides
Metals

Keywords

  • trans-metal-trapping
  • group 3 sandwich

Cite this

Martínez-Martínez, Antonio J. ; Kennedy, Alan R. ; Paprocki, Valerie ; Fantuzzi, Felipe ; Dewhurst, Rian D. ; O'Hara, Charles T. ; Braunschweig, Holger ; Mulvey, Robert E. / Selective mono- and dimetallation of a group 3 sandwich complex. In: Chemical Communications. 2019 ; Vol. 55, No. 65. pp. 9677-9680.
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Martínez-Martínez, AJ, Kennedy, AR, Paprocki, V, Fantuzzi, F, Dewhurst, RD, O'Hara, CT, Braunschweig, H & Mulvey, RE 2019, 'Selective mono- and dimetallation of a group 3 sandwich complex' Chemical Communications, vol. 55, no. 65, pp. 9677-9680. https://doi.org/10.1039/C9CC03825F

Selective mono- and dimetallation of a group 3 sandwich complex. / Martínez-Martínez, Antonio J.; Kennedy, Alan R.; Paprocki, Valerie; Fantuzzi, Felipe; Dewhurst, Rian D.; O'Hara, Charles T.; Braunschweig, Holger; Mulvey, Robert E.

In: Chemical Communications, Vol. 55, No. 65, 21.08.2019, p. 9677-9680.

Research output: Contribution to journalArticle

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AU - O'Hara, Charles T.

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Martínez-Martínez AJ, Kennedy AR, Paprocki V, Fantuzzi F, Dewhurst RD, O'Hara CT et al. Selective mono- and dimetallation of a group 3 sandwich complex. Chemical Communications. 2019 Aug 21;55(65):9677-9680. https://doi.org/10.1039/C9CC03825F