Trans-Metal-Trapping: Concealed Crossover Complexes En Route to Transmetallation?

Marina Uzelac, Robert E. Mulvey

Research output: Contribution to journalArticlepeer-review

29 Citations (SciVal)


Defined as the transfer of ligands from one metal to another, transmetallation is a common reaction in organometallic chemistry. Its chemical celebrity stems from its role in important catalytic cycles of cross-coupling reactions such as those of Negishi, Sonogashira, Stille, or Suzuki. This article focuses on trans-metal-trapping (TMT), which could be construed as partially complete transmetallations. On mixing two distinct organometallic compounds, of for example lithium with aluminium or gallium, the two metals meet in a crossover co-complex, but the reaction ceases at that point and full transmetallation is not reached. Though in its infancy, trans-metal-trapping shows promise in transforming failed lithiations into successful lithiations and in stabilising sensitive carbanions through cooperative bimetallic effects making them more amenable to onward reactivity.

Original languageEnglish
Pages (from-to)7786-7793
Number of pages8
JournalChemistry - A European Journal
Issue number31
Publication statusPublished - 4 Jun 2018

Bibliographical note

Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim


  • main group elements
  • metallation
  • organometallic chemistry
  • trans-metal-trapping
  • transmetallation

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry


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