Synergic deprotonation generates alkali-metal salts of tethered fluorenide NHC ligands co-complexed to alkali metal amides

Kieren James Evans, Stephen M. Mansell

Research output: Contribution to journalArticle

3 Citations (Scopus)
32 Downloads (Pure)

Abstract

Synergic combinations of alkali-metal hydrocarbyl/amide reagents were used to synthesise saturated N-heterocyclic carbene (NHC) ligands tethered to a fluorenide anion through deprotonation of a spirocyclic precursor, whereas conventional bases were not successful. The Li2 derivatives displayed a bridging amide between two Li atoms within the fluorenide-NHC pocket, whereas the Na2 and K2 analogues displayed extended solid-state structures with the fluorenide-NHC ligand chelating one alkali metal centre.

Original languageEnglish
Pages (from-to)3766-3769
Number of pages4
JournalChemistry - A European Journal
Volume25
Issue number15
Early online date22 Jan 2019
DOIs
Publication statusPublished - 12 Mar 2019

Keywords

  • alkali metals
  • bimetallic base
  • carbene ligands
  • metalation

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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