944133-10-2Relevant academic research and scientific papers
Synthesis, characterization, and electronic properties of metalloporphyrins annulated to exocyclic imidazole and imidazolium rings
Lefebvre, Jean-Francois,Leclercq, Dominique,Gisselbrecht, Jean-Paul,Richeter, Sebastien
scheme or table, p. 1912 - 1920 (2010/05/19)
meso-Tetraarylporphyrin complexes (M = Ni, Cu, Zn, H2) fused to an imidazole ring across two neighboring β-pyrrolic positions were synthesized through a cyclization reaction between β,β'- diaminoporphyrins and formic acid or trimethyl orthoformate under acidic conditions. Two synthetic procedures were used to obtain the corresponding porphyrin N,N'-dimethylimidazolium salts derivatives: alkylation of the imidazole nitrogen atoms with iodomethane and the cyclization reaction between the porphyrin bearing two neighboring β-N-methyl groups and trimethyl orthoformate in the presence of ammonium hexafluorophosphate. The electrochemical properties of these porphyrins annulated to an imidazole/imidazolium ring have been investigated by cyclic and rotating disk voltammetry.
Synthesis and structural characterisation of the first N-heterocyclic carbene ligand fused to a porphyrin
Richeter, Sebastien,Hadj-Aissa, Aurelie,Taffin, Celine,Van Der Lee, Arie,Leclercq, Dominique
, p. 2148 - 2150 (2008/02/09)
The functionalisation of two neighboring β-pyrrolic positions of a porphyrin by a fused N-heterocyclic carbene ligand, the subsequent metallation of this external coordination site by palladium(ii) and the structural characterisation of the resulting comp
