Mannich products of kojic acid and N-heterocycles and their Ru(II)-arene complexes: Synthesis, characterization and stability
- Author(s)
- Johanna Hubinger-Kasser, Wolfgang Kandioller, Christian Hartinger, Alexey Nazarov, Vladimir Arion, Paul J. Dyson, Bernhard Keppler
- Abstract
Ru(II)-?6-p-cymene compounds bearing pyrone-derived ligands, which were obtained by Mannich reaction with piperidine and related analogues, have been synthesized. The compounds were characterized by NMR spectroscopy, mass spectrometry, thermogravimetric analysis and in the case of 2-(2,6-dimethyl-morpholin-4-ylmethyl)-3-hydroxy-6-hydroxymethyl-pyran-4-one by X-ray diffraction analysis. The chlorido complexes are prone to aquation in aqueous solution which results in the formation of dimers. Dimer formation can be inhibited by in situ replacement of the chlorido ligand by imidazole yielding compounds which are significantly more stable in water, as demonstrated by 1H NMR spectroscopy.
- Organisation(s)
- Department of Inorganic Chemistry
- External organisation(s)
- École polytechnique fédérale de Lausanne
- Journal
- Journal of Organometallic Chemistry
- Volume
- 695
- Pages
- 875-881
- No. of pages
- 7
- ISSN
- 0022-328X
- DOI
- https://doi.org/10.1016/j.jorganchem.2010.01.007
- Publication date
- 2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104003 Inorganic chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/4cb54431-87a0-42d4-bf6f-70c354d2db5f