Practical and Efficient Procedure for the In Situ Preparation of B-Alkoxyoxazaborolidines. Enantioselective Reduction of Prochiral Ketones
作者:Viviana Ponzo、Teodoro Kaufman
DOI:10.3390/50300495
日期:——
A new method for the in situ elaboration of B-alkoxyoxazaborolidines is presented. Their use in the enantioselective reduction of prochiral aromatic ketones provides excellent chemical and optical yields of chiral alcohols.
<i>Escherichia coli</i>/ADH-A: An All-Inclusive Catalyst for the Selective Biooxidation and Deracemisation of Secondary Alcohols
作者:Caroline E. Paul、Iván Lavandera、Vicente Gotor-Fernández、Wolfgang Kroutil、Vicente Gotor
DOI:10.1002/cctc.201300409
日期:2013.12
the synthesis of the highly valuable raspberry ketone. Moreover, a biocatalytic concurrent process was developed with the resting cells of E. coli/ADH‐A, ADH from Lactobacillus brevis, and glucose dehydrogenase for the deracemisation of various secondary alcohols, which afforded the desired enantiopure alcohols in more than 99 % ee starting from the racemic mixture. The reaction time of deracemisation
Multienzyme One-Pot Cascade for the Stereoselective Hydroxyethyl Functionalization of Substituted Phenols
作者:Stefan E. Payer、Hannah Pollak、Benjamin Schmidbauer、Florian Hamm、Filip Juričić、Kurt Faber、Silvia M. Glueck
DOI:10.1021/acs.orglett.8b02058
日期:2018.9.7
The operability and substrate scope of a redesigned vinylphenol hydratase as a single biocatalyst or as part of multienzyme cascades using either substituted coumaric acids or phenols as stable, cheap, and readily available substrates are reported.
Biocatalytic Properties and Structural Analysis of Eugenol Oxidase from<i>Rhodococcus jostii</i>RHA1: A Versatile Oxidative Biocatalyst
作者:Quoc-Thai Nguyen、Gonzalo de Gonzalo、Claudia Binda、Ana Rioz-Martínez、Andrea Mattevi、Marco W. Fraaije
DOI:10.1002/cbic.201600148
日期:2016.7.15
Selectivity of oxidases: Eugenol oxidasefromRhodococcus jostii RHA1 is a robust biocatalyst that can be used for a number of oxidations, including dehydrogenations, as well as for the kinetic resolution of a racemic secondary alcohol. The crystal structure provides insight into the selectivity of this oxidative biocatalyst.
Asymmetric Enzymatic Hydration of Hydroxystyrene Derivatives
作者:Christiane Wuensch、Johannes Gross、Georg Steinkellner、Karl Gruber、Silvia M. Glueck、Kurt Faber
DOI:10.1002/anie.201207916
日期:2013.2.18
decarboxylases catalyze the regio‐ and stereoselective addition of H2O across the CC double bond of hydroxystyrenederivatives yielding (S)‐4‐(1‐hydroxyethyl)phenols with up to 82 % conversion and 71 % ee. Based on structure analysis and molecular docking simulations, a catalytic mechanism for this novel enzymatic reaction is proposed.