Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Werner Hummel"'
Autor:
Gröger, Daniel Bakonyi, Christine Toelzer, Michael Stricker, Werner Hummel, Karsten Niefind, Harald
Publikováno v:
Catalysts; Volume 10; Issue 11; Pages: 1281
Alcohol dehydrogenases catalyse the conversion of a large variety of ketone substrates to the corresponding chiral products. Due to their high regio- and stereospecificity, they are key components in a wide range of industrial applications. A novel a
Publikováno v:
European Journal of Organic Chemistry. 2017:812-817
A suitable "process window" was identified for the combination of an asymmetric organocatalytic aldol reaction and subsequent biocatalytic reduction in aqueous medium, which thus enabled the enantio- and diastereoselective synthesis of 1,3-diols in a
Publikováno v:
Green Chemistry. 19:405-410
Whole-cell catalysts overexpressing two enzymes for a double reduction cascade in which aliphatic alpha-branched alpha,beta-unsaturated aldehydes are converted into Guerbet alcohols as a highly demanded class of lubricants were constructed and charac
Autor:
Anna Reimer, Udo Kragl, Werner Hummel, Harald Gröger, Sandy Schmidt, Svenja Staudt, Severin Wedde, Uwe T. Bornscheuer, Diana Höffer
Publikováno v:
Journal of Heterocyclic Chemistry. 54:391-396
For an alternative synthetic approach toward the heterocyclic industrial chemical e-caprolactone, which is based on a biocatalytic oxidation of readily available cyclohexanol with air in aqueous media (using an alcohol dehydrogenase and a Baeyer–Vi
Publikováno v:
ChemBioChem. 17:1349-1358
The stereoselective synthesis of chiral 1,3-diols with the aid of biocatalysts is an attractive tool in organic chemistry. Besides the reduction of diketones, an alternative approach consists of the stereoselective reduction of beta-hydroxy ketones (
Publikováno v:
ChemCatChem. 8:895-899
A novel synthetic approach towards Guerbet alcohols, which are important intermediates in the production of plasticizers, lubricants, and surfactants, was developed. In contrast to the harsh reaction conditions of Guerbet alcohols produced today, whi
Publikováno v:
Organic Process Research & Development. 19:635-638
In this contribution, we report the chemoenzymatic preparation of a key building block for the active pharmaceutical ingredient rosuvastatin, one of the "top 5 blockbuster drugs" with a worldwide market value of 6.25 billion USD in 2012, via a seven-
Publikováno v:
Advanced Synthesis & Catalysis. 357:1751-1762
Tailor-made strategies for the stereo- and regioselective multi-step enzymatic synthesis of glycoconjugates require well characterized glycosyltransferases and carbohydrate modifying enzymes. We here report on a novel enzyme cascade for the synthesis
Publikováno v:
ChemCatChem. 7:1302-1311
In this study an evaluation of the synthetic potential of a broad range of recombinant ene reductases was performed. In detail, a library of 23 ene reductases was used to screen the C=C reduction of 21 activated alkenes from different compound classe
Publikováno v:
Angewandte Chemie International Edition. 54:4488-4492
A Wacker oxidation using CuCl/PdCl2 as a catalyst system was successfully combined with an enzymatic ketone reduction to convert styrene enantioselectively into 1-phenylethanol in a one-pot process, although the two reactions conducted in aqueous med