| | 1 | Author
| Bernhard Steinmetz, Michael Hagel, WolfdieterA. Schenk | Requires cookie* | | | Title
| Synthesis and Oxidation of Ruthenium Allyl Thioether Complexes Bearing Phosphite and Phosphonite Coligands [1]  | | | | Abstract
| Halfsandwich ruthenium thiolate complexes bearing electron-withdrawing phosphite or phos phonite ligands were prepared from [CpRu(PPh3)2(SR)l (R = Ph, CH2Ph, Me) and triph-enylphosphite or (5,5')-bis(binaphthylphosphonito)ethane (bbpe), respectively. Reaction with l-bromo-3-methyl-2-butene in the presence of NH4PF6 gave the corresponding allylthioether complexes [CpRu(PR'3)2(S(R)CH2CH=CMe2)]PF6. Treatment with an excess of dimethyl dioxirane (DMD) transformed the triphenylphosphite derivatives into diastereomeric (oxiranyl-methyl)sulfoxide complexes with 18 -80% de. NMR monitoring of the reaction revealed that the oxidant attacks the sulfur atom and the C=C double bond with comparable rates. Sim ilar oxidation of the bbpe complexes gave mixtures of four diastereoisomers with ratios of (64 : 15 : 1 3 :8) and (51 : 24 : 15 : 10), respectively. | | | |
Reference
| Z. Naturforsch. 54b, 1265—1271 (1999); received July 2 1999 | | | |
Published
| 1999 | | | |
Keywords
| Ruthenium Complexes, Thioether, Sulfoxide, Epoxide, Dimethyldioxirane | | | |
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| default:Reihe_B/54/ZNB-1999-54b-1265.pdf | | | | Identifier
| ZNB-1999-54b-1265 | | | | Volume
| 54 | |
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