Synthesis of Highly Substituted 2-¹³C-Imidazolium Salts and Metal NHC ­Complexes for the Investigation of Electronic Unsymmetry by NMR

Abstract

Complexes of unsymmetrically substituted N-heterocyclic carbenes with NMR-active metals (Ag, Hg, Pt) with or without a ¹³C-label in the 2-position were synthesized by aldimine cross coupling and analyzed with respect to the scalar couplings between the metal center or C2 and the other ring atoms.

Key words

N-heterocyclic carbenes - ¹³C labeling - NMR-active metals - cross-coupling - spectroscopy

• References

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