Influence of anellation in N-heterocyclic carbenes: Novel quinoxaline-anellated NHCs trapped as transition metal complexes

• Published in: Chemical communications (Cambridge, England) no. 6; pp. 640 - 642
• Main Authors: Saravanakumar, S, Kindermann, MK, Heinicke, J, Kockerling, M
• Format: Journal Article
• Language: English
• Published: CAMBRIDGE Royal Soc Chemistry 14.02.2006
• Subjects: Chemistry; Chemistry, Multidisciplinary; Physical Sciences; Science & Technology; CATALYSIS; PALLADIUM; CRYSTALLINE CARBENE; LIGANDS; STABLE CARBENES; DIAMINOCARBENE; EQUILIBRIUM; HOMOLOGS; IMIDAZOLIUM SALTS; ELECTRONIC-STRUCTURE

The synthesis, NMR-, and crystal structure data of novel electron-deficient quinoxaline anellated imidazol-2-ylidene precursors and complexes thereof are reported and compared with related less electron-withdrawing or non-anellated N-hetero-cyclic carbenes and complexes to illustrate anellation effe...