Mannich products of kojic acid and N-heterocycles and their Ru(II)-arene complexes: Synthesis, characterization and stabilityстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Авторы:
Kasser J.H. ,
Kandioller W. ,
Hartinger C.G. ,
Nazarov A.A. ,
Arion V.B. ,
Dyson P.J. ,
Keppler B.K.
Журнал:
Journal of Organometallic Chemistry
Том:
695
Номер:
6
Год издания:
2010
Издательство:
Elsevier BV
Местоположение издательства:
Netherlands
Первая страница:
875
Последняя страница:
881
DOI:
10.1016/j.jorganchem.2010.01.007
Аннотация:
Ru(II)-η6-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. © 2010 Elsevier B.V. All rights reserved.
Добавил в систему:
Назаров Алексей Анатольевич