Results 91 to 100 of about 53,376 (301)
Frontiers in Microbiology, 2016 A stereoselective three-enzyme cascade for synthesis of diasteromerically pure γ-oxyfunctionalized α-amino acids was developed. By coupling a dynamic kinetic resolution using an N-acylamino acid racemase and an L-selective aminoacylase from Geobacillus ...
Junichi eEnoki +3 more
doaj +1 more source
Conversion of racemic ibuprofen to (s)-ibuprofen [PDF]
, 2010 Ibuprofen is a common Non-Steroidal Anti-Inflammatory Drug (NSAID) sold as a racemic or equal mixture of (R) and (S) mirror-image enantiomers. Without patent protection, ibuprofen is an orphan drug even though one enantiomer, (S)-ibuprofen, provides ...
Chavez-Flores, David
core +1 more source
American Journal of Botany, EarlyView.Abstract Premise Human activity has significantly altered the salt cycle, affecting an estimated 2.5 billion acres of soil worldwide. Elevated soil salinity is a well‐known plant stressor, but it may also affect interactions between plants and insects, which are often sodium limited.
Kylie Bill, David E. Carr
wiley +1 more source
Angewandte Chemie, EarlyView.Cyclopentadienes (CpHs) are fundamental building blocks with widespread applications in chemistry. However, their inherent acidity and isomeric instability have long limited access to chiral variants in an asymmetric fashion. Here, we introduce a CuH‐catalyzed asymmetric transformation that provides an unprecedented entry into a new class of ...
Piero Soppelsa +4 more
wiley +2 more sources
Comparison of the effects of racemic ketamine and S-ketamine for anesthesia in Rheem gazelles (Gazella subgutturosa marica) and Subgutturosa gazelles (Gazella subgutturosa subgutturosa) [PDF]
, 2011 OBJECTIVE: To evaluate effects of racemic ketamine and S-ketamine in gazelles. ANIMALS: 21 male gazelles (10 Rheem gazelles [Gazella subgutturosa marica] and 11 Subgutturosa gazelles [Gazella subgutturosa subgutturosa]), 6 to 67 months old and weighing ...
Bektas, R. +9 more
core +1 more source
Angewandte Chemie, EarlyView.Enantioselective aminoarylation of ortho‐allyl anilines is achieved under mild conditions. Key to success is the electrostatically‐directed nature of the key aminopalladation step, achieved by using the sulfonated chiral ligand sSPhos on palladium. A detailed study of electronic trends allows tuning of the sulfonamide protecting group to enable good ...
Max Kadarauch +4 more
wiley +2 more sources
Enantioselective Extraction of Ofloxacin Enantiomers Using Ester Alcohol L-Tartarate as Chiral Selector [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2009 The distribution behavior of ofloxacin enantiomers was examined in the aqueous and organic solvent of a two-phase system containing chiral selector L-tartarate.
Xiaoqing Chen Feipeng Jiao, Xinyu Jiang
doaj
, 2014 Citation: 'racemate' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.R05025 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source
Functional and Network PHAs via Stereoselective Polymerization and Tailored Post‐Transformation
Angewandte Chemie, EarlyView.Catalyst‐controlled stereoselective (co)polymerization of functionalized lactones produces vinyl‐, allyl‐, and propargyl‐functionalized PHAs with high syndiotacticity and a broad applicable temperature window, which can be further transformed into crosslinked PHA thermosets, elastic supramolecular networks, and functional grafts. ABSTRACT Incorporation
Ruirui Li +6 more
wiley +2 more sources
Acta Crystallographica Section E, 2011 The title compound, C23H17ClN2O3·C2H6O, is the stoichiometric 1:1 ethanol solvate of a racemic reaction product, which forms a conglomerate. The refined Flack parameter of 0.36 (3) indicates racemic twinning.
Adil Boughaleb +4 more
doaj +1 more source