NDLI: Diruthenium(II,III) tetramidates as a new class of oxygenation catalysts

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Fanwick, Phillip E. Ren, Tong Villalobos, Leslie Cao, Zhi
Description	Author Affiliation: Villalobos L ( Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, USA.)
Abstract	Two new diruthenium(II,III) tetramidate compounds, $Ru_{2}(NHOCC(CH_{3})_{2})_{4}Cl$ (1) and $Ru_{2}(NHOCCH_{2}CH_{3})_{4}Cl$ (2) have been prepared and structurally characterized by X-ray crystallography . The activity of promoting sulfide oxygenation using simple oxidants such as hydrogen peroxide $(H_{2}O_{2})$ and tert-butyl hydroperoxide (TBHP) was studied. A UV-kinetics study indicated that the initial rates of 1 and 2 are comparable to the previously studied diruthenium tetracarboxylates in promoting TBHP oxygenation of methyl phenyl sulfide (MPS). Using excess oxidant and $CH_{3}CN$ as the solvent , organic sulfides MPS and diphenyl sulfide (PPS) were oxidized using 1 mol% of the catalytic species. Compound 1 is more effective than 2 in converting sulfides to sulfoxide under the same conditions. Fast conversion was achieved when the reactions were carried out in the solvent -free conditions, and the major oxidation product was the sulfoxide . The electronic structure of the title compounds was studied with DFT calculations to gain an understanding of the activation of peroxy reagents.
ISSN	14779226
Issue Number	2
Journal	Dalton Trans.
Volume Number	41
e-ISSN	13645447
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2012-01-14
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Chemistry
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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