Reference : Catalytic asymmetric dihydroxylation of C,C double bonds with osmium tetroxide using sel...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/116164
Catalytic asymmetric dihydroxylation of C,C double bonds with osmium tetroxide using selenoxides as co-oxidants
English
Krief, A. [Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP > Chimie > > >]
Colaux, Catherine mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
2001
Synlett
Georg Thieme Verlag Stuttgart
4
501-504
Yes (verified by ORBi)
International
0936-5214
Stuttgart
Germany
[en] Asymmetric dihydroxylation of olefins has been achieved in good yields and ee's using potassium osmate dihydrate (K2OsO2(OH)(4), the pre-oxidant), (DHQD)(2)PHAL (the chiral ligand), potassium carbonate (the base) and selenoxides (the co-oxidants). Bath the yield and the ee proved to be pH dependent, the highest yield and ee being found at almost the same pH values. The rate of the reaction was found to be highly dependent upon the structure of the selenoxide used. Some representative examples involving aminoxides are presented for comparison.
http://hdl.handle.net/2268/116164

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