Contrasting reactivity of anionic boron- and gallium-containing NHC analogues: E-C vs. E-M bond formation (E = B, Ga)

Andrey V Protchenko; Liban M A Saleh; Dragoslav Vidovic; Deepak Dange; Cameron Jones; Philip Mountford; Simon Aldridge

doi:10.1039/c0cc02572k

Contrasting reactivity of anionic boron- and gallium-containing NHC analogues: E-C vs. E-M bond formation (E = B, Ga)

Chem Commun (Camb). 2010 Dec 7;46(45):8546-8. doi: 10.1039/c0cc02572k. Epub 2010 Aug 27.

Authors

Andrey V Protchenko¹, Liban M A Saleh, Dragoslav Vidovic, Deepak Dange, Cameron Jones, Philip Mountford, Simon Aldridge

Affiliation

¹ Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, UK OX1 3QR.

PMID: 20820542
DOI: 10.1039/c0cc02572k

Abstract

The anionic Group 13 NHC analogues [(CHNDipp)(2)E](-) (E = B or Ga) display contrasting reactivity towards the half-sandwich titanium imido complex Cp*TiCl(NtBu)py; while the gallium system undergoes salt metathesis yielding the first example of a titanium gallyl compound, the more nucleophilic boryl anion generates a dearomatized pyridyl fragment via attack at the ligand 2-position.