Results 11 to 20 of about 30,863 (282)
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
Charting the Future of Stereoselective Carbohydrate Synthesis: The Essential Role of Cross-Disciplinary Innovation. [PDF]
Adv Sci (Weinh)Cross‐disciplinary endeavors are blossoming across the broad chemical sciences. This perspective provides a glimpse into the rewarding interdisciplinary journey taken by the Charles Loh research group in pioneering the σ‐hole based catalytic glycosylation strategy.
Loh CCJ.
europepmc +2 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
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
openaire +2 more sources
Predicting Glycosylation Stereoselectivity Using Machine Learning [PDF]
, 2020 Predicting the stereochemical outcome of chemical reactions is challenging in mechanistically ambiguous transformations. The stereoselectivity of glycosylation reactions is influenced by at least eleven factors across four chemical participants and ...
Sourav, Chatterjee +3 more
core +2 more sources
Stereoselective Synthesis of Microcarpalide. [PDF]
ChemInform, 2002 AbstractFor Abstract see ChemInform Abstract in Full Text.
Juan, Murga +4 more
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Manipulating Stereoselectivity of Parahydrogen Addition to Acetylene to Unravel Interconversion of Ethylene Nuclear Spin Isomers [PDF]
, 2023 Symmetric molecules exist as distinct nuclear spin isomers (NSIMs). A deeper understanding of their properties, including interconversion, requires efficient techniques for NSIMs enrichment.
Ivan V., Skovpin +7 more
core +2 more sources
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 +3 more sources
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