Results 31 to 40 of about 166,370 (359)
Journal of Chemistry, 2017 Abuse of 3,4-methylenedioxymethamphetamine (MDMA) is becoming more common worldwide. To date, there is no information available on stereoselectivity of MDMA protein binding in humans, rats, and mice.
Wan Raihana Wan Aasim +2 more
doaj +1 more source
Nature Communications, 2019 Achieving both high stereoselectivity and yield is a challenge for conventional asymmetric catalysis. Here, the authors report two metal nanoparticle-loaded and porphyrin-containing homochiral covalent organic framework-based composite catalysts that ...
Hui-Chao Ma +3 more
doaj +1 more source
Journal of Agricultural and Food Chemistry, 2019 This is the first systemic assessment of the stereoselectivity of etoxazole enantiomers. Etoxazole's stereoselective bioactivity was assessed against target organisms ( Tetranychus urticae eggs and Tetranychus cinnabarinus eggs), and its acute toxicity ...
Weixia Chang +4 more
semanticscholar +1 more source
Synthesis and 1,3-Dipolar Cycloaddition Reactions of Chiral Maleimides
Molecules, 1997 New routes to the synthesis of various novel chiral maleimides are described. The oxabicyclic anhydride 2 readily available exo-Diels-Alder adduct of furan and maleic anhydride was used as a vehicle, which in turn reacted with hydrochlorides of amino ...
Lubor Fisera, Vladimir Ondrus
doaj +1 more source
Stereoselective Radical Translocations
CHIMIA, 2008 The stereochemical outcome of intramolecular radical mediated hydrogen transfer (= radical translocation) is discussed. Low to excellent levels of stereocontrol are observed making such processes attractive for applications in target-oriented synthesis.
Philippe Renaud +5 more
openaire +5 more sources
Mapping the Relationship between Glycosyl Acceptor Reactivity and Glycosylation Stereoselectivity
Angewandte Chemie, 2018 The reactivity of both coupling partners—the glycosyl donor and acceptor—is decisive for the outcome of a glycosylation reaction, in terms of both yield and stereoselectivity.
Stefan van der Vorm +5 more
semanticscholar +1 more source
Flexible access to conformationally-locked bicyclic morpholines [PDF]
, 2013 A preparatively accessible route to a series of conformationally-locked bicyclic morpholines has been developed. This flexible approach allows for diversification in order for a small array of lead-like scaffolds to be synthesised from readily available ...
Brawn +20 more
core +1 more source
Recent Advances of Pharmaceutical Process Chemistry and Its Innovation in China: Part 1
Pharmaceutical Fronts, 2020 This review article summarizes recent developments and innovations in China's pharmaceutical process chemistry over the last several decades. Case studies of dozens of blockbuster drug processes are presented, including bulk drugs, such as the over-the ...
Pei Tang +5 more
doaj +1 more source
A self optimizing synthetic organic reactor system using real-time in-line NMR spectroscopy [PDF]
, 2015 A configurable platform for synthetic chemistry incorporating an in-line benchtop NMR that is capable of monitoring and controlling organic reactions in real-time is presented.
Cronin, Leroy +3 more
core +2 more sources
Polímeros, 1997 RESUMO: Catalisadores de metalocenos com diferentes simetrias, cocatalisados por metilaluminoxanas (MAO), foram avaliados em diferentes temperaturas de polimerização do propileno.
Mário R. Meneghetti +2 more
doaj +1 more source