Results 101 to 110 of about 691,764 (293)
Stereodivergent, Diels-Alder-initiated organocascades employing α,β-unsaturated acylammonium salts: scope, mechanism, and application. [PDF]
, 2017 Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels-Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides ...
Abbasov, Mikail E +3 more
core +2 more sources
Main Group Metal Chemistry, 2019 We report here the coordination-mediated resolution of methyl o-chloromandelate, which is a key intermediate for clopidogrel, in preparative scale. The reaction of CaO, optically pure (2R, 3R)-O,O′-dibenzoyltartaric acid, and methyl o-chloromandelate in ...
Xu Hong-Wu +4 more
doaj +1 more source
Focus on chirality of HIV-1 non-nucleoside reverse transcriptase inhibitors [PDF]
, 2016 Chiral HIV-1 non-nucleoside reverse transcriptase inhibitors (NNRTIs) are of great interest since one enantiomer is often more potent than the corresponding counterpart against the HIV-1 wild type (WT) and the HIV-1 drug resistant mutant strains.
Famiglini, Valeria, Silvestri, Romano
core +2 more sources
Nature Communications, 2016 The Rauhut-Currier reaction is a powerful method to form carbon-carbon bonds. Here, the authors report an enantioselective intramolecular variant between alkenes and allenoates, giving access to highly functionalised bicyclic lactones in excellent ...
Weijun Yao +5 more
doaj +1 more source
Hydroformylation of Vinylferrocene with Rhodium and Platinum Catalysts
CHIMIA, 1986 2- and 3-ferrocenylpropionaldehydes (2 and 3) have been prepared by highly regioselective hydroformylation of vinylferrocene (1) using rhodium and platinum catalysts.
László Kollár +2 more
doaj +1 more source
Molecules, 2019 In this study, an immobilization strategy for magnetic cross-linking enzyme aggregates of lipase B from Candida antarctica (CALB) was developed and investigated. Magnetic particles were prepared by conventional co-precipitation.
Xiu Xing +6 more
doaj +1 more source
Diffusion Enhances Chirality Selection
, 2006 Diffusion effect on chirality selection in a two-dimensional reaction-diffusion model is studied by the Monte Carlo simulation. The model consists of achiral reactants A which turn into either of the chiral products, R or S, in a solvent of chemically ...
D. Kondepudi +7 more
core +1 more source
Molecules, 2018 Chiral and molecular recognition through protonation was investigated through the collision-activated dissociation (CAD) of protonated noncovalent complexes of aromatic amino acid enantiomers with l-alanine- and l-serine-containing tripeptides using a ...
Akimasa Fujihara +4 more
doaj +1 more source
Asymmetric microbial conversion of (E)-2-benzylideneindan-1-one by the filamentous fungi Botrytis cinerea, Trichoderma viride, and Eutypa lata [PDF]
, 2011 The transformation of (E)-2-benzylideneindan-1-one 1 by the filamentous fungi Botrytis cinerea, Trichoderma viride, and Eutypa lata as biocatalysts was studied.
Aleu Casatejada, Josefina +2 more
core +2 more sources
Nature Communications, 2019 Amine dehydrogenases (AmDHs) catalyse the conversion of ketones into amines. Here, the authors created AmDH variants, the best of which showing a substrate-dependent stereo-switchable selectivity, affording either S- or R-configured amine products with ...
Vasilis Tseliou +4 more
doaj +1 more source