Results 101 to 110 of about 13,012 (246)
Supramolecular Control in Carbohydrate Epimerization: Discovery of a New Anion Host−Guest System [PDF]
, 2016 Supramolecular Control in Carbohydrate Epimerization: Discovery of a New Anion Host−Guest ...
Olof Ramström (1315563) +3 more
core +1 more source
Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis
European Journal of Organic Chemistry, EarlyView.In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley +1 more source
Occurrence of L-iduronic acid and putative D-glucuronyl C5-epimerases in prokaryotes [PDF]
, 2011 Glycosaminoglycans (GAGs) are polysaccharides that are typically present in a wide diversity of animal tissue. Most common GAGs are well-characterized and pharmaceutical applications exist for many of these compounds, e.g. heparin and hyaluronan.
Kengen, S.W.M. +6 more
core +1 more source
(-)-Catechin in Cocoa and Chocolate: Occurence and Analysis of an Atypical Flavan-3-ol Enantiomer
Molecules, 2007 Cocoa contains high levels of different flavonoids. In the present study, the enantioseparation of catechin and epicatechin in cocoa and cocoa products by chiral capillary electrophoresis (CCE) was performed.
Rudolf Galensa +2 more
doaj +1 more source
European Journal of Organic Chemistry, EarlyView.An efficient and straightforward methodology for the stereoselective and diastereospecific aminosilylation and hydrosilylation of heterobicyclic norbornene derivatives is introduced. The mild conditions enable the functionalization of norbornene substrates with broad functional‐group tolerance.
Daniel Kamzol +3 more
wiley +1 more source
Role of Silanol Group in Sn-Beta Zeolite for Glucose Isomerization and Epimerization Reactions [PDF]
, 2016 Density functional calculations are used to elucidate the role of the silanol group adjacent to the active site Sn metal center of the Sn-BEA zeolite in the isomerization and epimerization of glucose.
Stavros Caratzoulas (1355817) +2 more
core +1 more source
European Journal of Organic Chemistry, EarlyView.Purple‐light activation of aggregated diphenyl disulfide unlocks the photocatalyst‐free racemization of 1‐arylethanols. The resulting sulfur radical process operates under mild conditions and couples with the enzymatic acylation by Candida antarctica lipase B in a photobiocatalytic dynamic kinetic resolution, revealing new opportunities for sulfur ...
Cristina Guolo +2 more
wiley +1 more source
An Unexpected Rearrangement during Mitsunobu Epimerization Reaction of Sugar Derivatives [PDF]
, 2016 Mitsunobu reaction on the glucose derivative (3S,4R,5R,6R)-3,4,5,7-tetrabenzyloxy-6-hydroxy-1-heptene yielded an unexpected rearrangement major product. Its structure was determined as (3R,4R,5R,6S)-4,5,6,7-tetrabenzyloxy-3-hydroxy-1-heptene.
Rachel Persky (2996040) +1 more
core +1 more source
Truncation of Samroiyotmycin: Tailored seco‐Acids as Novel Antimalaria Compounds
European Journal of Organic Chemistry, EarlyView.Six truncated samroiyotmycin‐derived antimalarials were synthesized by replacing the tosyloxazole unit with electron‐deficient aryl groups. The most active seco‐acid with EWG = 2 × CF3 outperformed the natural product SamA. Its enhanced activity supports a donor–acceptor interaction involving the electron‐poor aryl unit, consistent with inhibition of ...
Anton Czuczkowski +10 more
wiley +1 more source
Epimerization of ergot alkaloids and brom-ergot alkaloids [PDF]
, 2016 Prvi zapisi o ergot alkaloidih in njihovih učinkih segajo že v 7. stoletje pr. n. š., njihovo raziskovanje in odkrivanje pa je doživelo razcvet v 20. stoletju.
Kladnik, Peter
core +1 more source