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

Jens Emsermann; Anthony J. Arduengo III; Till Opatz

doi:10.1055/s-0033-1338496

Synthesis, Inhaltsverzeichnis

Synthesis 2013; 45(16): 2251-2264
DOI: 10.1055/s-0033-1338496

paper

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

Jens Emsermann

^aInstitut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10–14, 55128 Mainz, Germany Fax: +49(6131)3922338 eMail: opatz@uni-mainz.de

,

Anthony J. Arduengo III

^bDepartment of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, AL 35487-0336, USA

,

Till Opatz*

^aInstitut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10–14, 55128 Mainz, Germany Fax: +49(6131)3922338 eMail: opatz@uni-mainz.de

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Abstract

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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

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Referenzen

References
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Supporting Information

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

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