Results 81 to 90 of about 19,273 (245)
Ligand‐Level Chemical Activation: Coordination with Benefits
European Journal of Inorganic Chemistry, EarlyView.While often perceived as a liability, ligand‐based reactivity in carefully designed settings becomes a powerful synthetic tool. The key to streamlined processes overriding classical ionic reactivity is the selective electron redistribution induced by metal coordination. This enables storage of electrons and protons or incorporation of functional groups
Oscar Charpentier +2 more
wiley +1 more source
, 2014 It is well known that several anti-trypanosomatid drugs accumulate in the parasite's mitochondrion, where they often bind to the organellar DNA, the kinetoplast.
Schnaufer, Achim; id_orcid +1 more
core +1 more source
European Journal of Organic Chemistry, EarlyView.1,1‐Disubstituted vinylbromides are key intermediates for constructing nitrogen‐containing heterocycles. This review provides an overview of the synthetic applications of 1,1‐disubstituted vinylbromides and summarizes recent developments in reaction methodologies, mechanistic insights, and the structural diversity of N‐heterocyclic compounds accessible
Anne Westermeyer +6 more
wiley +1 more source
European Journal of Organic Chemistry, EarlyView.The intramolecular nitrile oxide olefin [3 + 2]‐cycloaddition offers a reliable entry toward 2‐aza‐bicyclo[4.3.0]‐nonanes, a substructure found in several bioactive piperidine alkaloids. The required oxime precursors were prepared in non‐racemic form by Ir‐catalyzed asymmetric allylation and ring‐closing metathesis.
Alicia Köcher +5 more
wiley +1 more source
European Journal of Organic Chemistry, EarlyView.Chiral tri‐ and pentahydroxy spirocyclopentane‐indolizidines were synthesized using lithium diisopropylamide “LDA” promoted diallylation and tetrahydrofuran “THF” ring‐opening in a one‐pot procedure as a key step. The sequence leading to the targeted hydroxy‐spiroindolizidines was achieved by cis‐dihydroxylation followed by reduction of the enamine and
Paula Fraňová +6 more
wiley +1 more source
, 2016 The tetrahydrofuran complexes of the alkaline earth metal bis[bis(trimethylsilyl)phosphanides] react with 2 equiv of benzonitrile to the bis[1,3-bis(trimethylsilyl)-2-phenyl-1-aza-3-phosphapropenides] of magnesium (1), calcium (2), strontium (3), and ...
Matthias H. Digeser (2973231) +2 more
core +1 more source
European Journal of Organic Chemistry, EarlyView.The regio‐ and stereoselective synthesis of ring‐fused α‐hydroxy‐2‐cyclopentenones is achieved by a one‐pot gold(I)‐catalyzed Rautenstrauch rearrangement/nitrosocarbonyl hetero‐Diels–Alder reaction/ring opening sequence carried out on suitable propargyl esters followed by selective NO bond cleavage.
Dina Scarpi +3 more
wiley +1 more source
Cu(II)−Aza(bisoxazoline)-Catalyzed Asymmetric Benzoylations
, 2016 Racemic 1,2-diols and α-hydroxy carbonyl compounds can be asymmetrically benzoylated in a kinetic resolution in the presence of various Cu(II)−aza(bisoxazoline) catalysts.
M. G. Finn (1332078) +2 more
core +1 more source
Energy Science &Engineering, EarlyView.This study introduces bipolar q‐fractional fuzzy sets and new aggregation operators to support renewable energy selection under uncertainty. The proposed decision‐making framework effectively integrates positive and negative evaluations, ensuring consistent ranking and robust performance, as demonstrated through practical analysis and comparative ...
Sagvan Y. Musa +3 more
wiley +1 more source
Photochemical Synthesis of Aza-aromatic Compounds.
, 2017 Herein we report synthesis of series of novel both aza- and diaza-helicenes, and phenacenes, which were prepared mainly by photocyclization of corresponding imine precursors. Reaction conditions of photocyclization (i.e. solvent, photocatalyst, type of irradiation, use of water scavenger) were optimized and enhanced.
openaire +1 more source