2396-76-1Relevant articles and documents
Dihydroxylation of olefins catalyzed by zeolite-confined osmium(0) nanoclusters: An efficient and reusable method for the preparation of 1,2-cis-diols
Metin, Oender,Alp, Nurdan Alcan,Akbayrak, Serdar,Bier, Abdullah,Gueltekin, Mehmet Serdar,Oezkar, Saim,Bozkaya, Uur
experimental part, p. 1488 - 1492 (2012/06/29)
Addressed herein is a novel, eco-friendly, recoverable, reusable and bottleable catalytic system developed for the dihydroxylation of various olefins yielding 1,2-cis-diols. In our protocol, zeolite-confined osmium(0) nanoclusters (zeolite-Os0) are used as reusable catalyst and H 2O2 served as a co-oxidant. Zeolite-Os0 are found to be highly efficient and selective catalysts for the dihydroxylation of a wide range olefins in an aqueous acetone mixture at room temperature. In all of the olefins surveyed, the catalytic dihydroxylation reaction proceeds smoothly and the corresponding 1,2-cis-diols are obtained in excellent chemical yield under the optimized conditions. The present heterogeneous catalyst system provides many advantages, such as being eco-friendly and industrially applicable over the traditional homogenous OsO4-NMO system for the dihydroxylation of olefins.
A multicatalyst system for the one-pot desymmetrization/oxidation of meso-1,2-alkane diols
Mueller, Christian E.,Hrdina, Radim,Wende, Raffael C.,Schreiner, Peter R.
supporting information; experimental part, p. 6309 - 6314 (2011/08/07)
Two is better than one: We demonstrate the viability of an organocatalytic reaction sequence along a short peptide backbone that carries two independent catalytic functionalities, which allow the rapid, one-pot acylative desymmetrization and oxidation of meso-alkane-1,2-diols to the corresponding acetylated acetoins with good yields and enantioselectivities (see scheme). Copyright
Adrenaline profiling of lipases and esterases with 1,2-diol and carbohydrate acetates
Wahler, Denis,Boujard, Olivier,Lefèvre, Fabrice,Reymond, Jean-Louis
, p. 703 - 710 (2007/10/03)
The adrenaline test for enzymes is a general back-titration procedure to detect 1,2-diols, 1,2-aminoalcohols and α-hydroxyketones reaction products of enzyme catalysis by colorimetry. The method was used to profile a series of esterases and lipases for their esterolytic activity on a series of carbohydrate and polyol acetates. Substrates were prepared by peracetylation and used for parallel microtiter-plate analysis of enzyme activities. This method can be used to achieve a rapid and automated characterization of a set of enzymes during HTS screening.