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Search results for: sharpless dihydroxylation
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... system also works well in Sharpless asymmetric dihydroxylation. see ... Organic Chemistry Portal Osmium-Catalyzed Asymmetric Dihydroxylation of Olefins by H2O2 ... and functionalized olefins were successfully cis-dihydroxylated. The present biomimetic ...
Methanesulfonamide: a Cosolvent and a General Acid Catalyst in Sharpless Asymmetric Dihydroxylations
... Cosolvent and a General Acid Catalyst in Sharpless Asymmetric Dihydroxylations Mikko H. Junttila and ... O. E. Hormi* *Department of Chemistry, University of Oulu, ...
... chlorite is an efficient stoichiometric oxidant in Sharpless asymmetric dihydroxylation. The conversion of styrene ... and Hydroxy Ion Pump in Osmium-Catalyzed Asymmetric Dihydroxylation Mikko H. Junttila and Osmo E ...
... presence of dihydroquinine or dihydroquinidine derivatives (Sharpless ligands) with good to excellent chemo ... A New Practical Method for the Osmium-Catalyzed Dihydroxylation of Olefins using Bleach as the Terminal ...
... and enantioselectivities. Key Words Dihydroxylation , Sharpless Dihydroxylation , Upjohn Dihydroxylation , Osmium Tetroxide ... Organic Chemistry Portal Catalytic Asymmetric Dihydroxylation of Olefins with Reusable OsO42- on Ion-Exchangers ...
... cosolvent or replacement for tert-butanol in the Sharpless catalytic asymmetric dihydroxylation (AD) of ... Convenient New Medium for the Catalytic Asymmetric Dihydroxylation of Olefins Using a Recoverable and Reusable ...
... absolute configuration of the triol 4 by Sharpless asymmetric dihydroxylation of an acyclic precursor. ... intramolecular ketalization of 4 led to 5, that was carried on to 6 ( ...
... with TBAF gave the alkyne 5. Sharpless asymmetric dihydroxylation followed by selective monomesylation delivered ... epoxide 6, that was cyclized, then protected, leading to the bromoalkene 7 ...
... ether 4 of the symmetrical diol. Sharpless asymmetric dihydroxylation of the derived E-unsaturated ester ... by protection led to 5. Reduction followed by coupling of the iodide with the ...
... with high enantioselectivity and diastereoselectivity. The Sharpless asymmetric dihydroxylation has played a prominent role ... enantioselecitve organic synthesis. Two groups have recently reported improvements in the procedure. Osmo ...
