Results 11 to 20 of about 27,319 (289)
Do Reaction Conditions Affect the Stereoselectivity in the Staudinger Reaction?
Journal of Organic Chemistry, 2006 The stereochemistry is one of the critical issues in the Staudinger reaction. We have proposed the origin of the stereoselectivity recently. The effects of solvents, additives, and pathways of ketene generation on the stereoselectivity were investigated ...
Yikai Wang, Yong Liang, Lei Jiao
exaly +2 more sources
Protecting Groups in Carbohydrate Chemistry: Influence on Stereoselectivity of Glycosylations
Molecules, 2010 Saccharides are polyhydroxy compounds, and their synthesis requires complex protecting group manipulations. Protecting groups are usually used to temporarily mask a functional group which may interfere with a certain reaction, but protecting groups in ...
Xin-Shan Ye
exaly +3 more sources
Asymmetric Henry Reaction Using Cobalt Complexes with Bisoxazoline Ligands Bearing Two Fluorous Tags
Molecules, 2023 The effect of the presence of fluorous tags in bisoxazoline ligands on the stereoselectivity of the cobalt-catalyzed asymmetric Henry reaction was investigated.
Kazuki Ishihara +7 more
doaj +1 more source
Biomolecules, 2022 Stereoselectivity is well known and very pronounced in drug metabolism and receptor binding. However, much less is known about stereoselectivity in drug membrane transport. Here, we characterized the stereoselective cell uptake of chiral phenylethylamine
Lukas Gebauer +2 more
doaj +1 more source
Stereoselective Synthesis of (−)-Spicigerolide [PDF]
The Journal of Organic Chemistry, 2009 (-)-Spicigerolide was stereoselectively synthesized from a protected (S)-lactaldehyde. The synthesis of the polyacetylated framework relied on two Zn-mediated stereoselective additions of alkynes to aldehydes as well as a regiocontrolled [3,3]-sigmatropic rearrangement of an allylic acetate.
Georges, Yohan +2 more
openaire +4 more sources
A Stereoselective Synthesis of (−)-Tetrodotoxin [PDF]
Journal of the American Chemical Society, 2003 An asymmetric synthesis of the fugu fish poison, (-)-tetrodotoxin, is described. The route to this extraordinary target employs a number of unique transformations, foremost of which are two stereospecific C-H bond functionalization reactions. Accordingly, Rh-catalyzed carbene and nitrene C-H insertions facilitate rapid entry to the cyclohexane core of ...
Andrew, Hinman, J, Du Bois
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Tetrahedron Chem, 2022 Succinates play a vital role in industry, pharmaceutics, beverage, and cosmetics. A regio- and stereoselective alkoxycarbonylation of unsymmetrical internal alkynes with alcohols or phenols toward α, β-unsaturated succinates enabled by palladium ...
Chang-Sheng Kuai +3 more
doaj +1 more source
Stereoselective Synthesis of Microcarpalide. [PDF]
ChemInform, 2002 AbstractFor Abstract see ChemInform Abstract in Full Text.
Juan, Murga +4 more
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Stereoselectivity in Drug Membrane Transport by Solute Carriers (SLCs) [PDF]
, 2023 Deutsche Forschungsgemeinschaft (DFG - project number 437446827)About 50% of all small molecule drugs are racemic mixtures of usually two stereoisomers.
Gebauer, Lukas
core +1 more source
Beilstein Journal of Organic Chemistry, 2023 The aza-Friedel–Crafts reaction allows an efficient coupling of electron-rich aromatic systems with imines for the facile incorporation of aminoalkyl groups into the aromatic ring. This reaction has a great scope of forming aza-stereocenters which can be
Anup Biswas
doaj +1 more source