C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
C25B 3/02 (2006.01) B01J 31/16 (2006.01) B01J 31/40 (2006.01) B01J 37/34 (2006.01) C07C 29/48 (2006.01)
Patent
CA 2130564
A process is disclosed in with optically active glycols are produced through an electrolytic asymmetric dihydroxylation (ADH) reaction involving olefins as substrates. The ADH reaction is mediated by a catalytically active amount of osmium tetroxide or osmium-containing precursor in a profit medium in the presence of chiral ligand. Any lower valent osmium species produced in the course of the ADH reaction is regnerated electrolytically either directly in the absence of a secondary oxidant or indirectly in the presence of a secondary oxidant that itself undergoes electrolytic regeneration.
Gao Yun
Zepp Charles M.
Osler Hoskin & Harcourt Llp
Sepracor Inc.
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