Results 151 to 160 of about 29,422 (294)

Regioselective Lactonization of Tetrasialic Acid [PDF]

Angewandte Chemie, 2000
, Cheng, , Lin, , Wang, , Lin, , Wu
openaire   +2 more sources

Gold Nanoparticles Supported on Poly(Phenylene Oxide) as Selective and Versatile Catalyst for Hydroamination of Arylacetylenes with Anilines

European Journal of Inorganic Chemistry, EarlyView.
Gold nanoparticles supported on poly(2,6‐dimethyl‐1,4‐phenylene oxide) (AuNPs‐PPO) demonstrates efficient and selective hydroamination, with performance tuned by reaction conditions and substrate design. Electron‐withdrawing substituents enhance conversion while preserving E‐imine selectivity, highlighting a key role of intermediate acidity.
Marta Aversa, Salvatore Impemba, Alessia Giannattasio, Irene Contento, Enrico Berretti, Alessandro Lavacchi, Carmine Capacchione, Alfonso Grassi, Antonio Buonerba   +8 more
wiley   +1 more source

Overcoming regioselectivity and accessibility challenges in aryne methodology

University of Minnesota Ph.D. dissertation. May 2024. Major: Chemistry. Advisor: Courtney Roberts. 1 computer file (PDF); xxiv, 327 pages.Since its inception, aryne methodology has been an invaluable tool to synthetic chemists.
Plasek, Erin
core  

Quantitative Screening of Ziegler-Natta: Catalyst Regioselectivity

, 2015
High Throughput Experimentation (HTE) has gained importance in the screening of olefin polymerization catalysts. In particular, its recent integration with ‘fast’ 13C NMR spectrometers represents a most powerful tool for mechanistic investigations ...
CIPULLO, ROBERTA
core  

Rega: A Platform for the Prediction of the Regioselectivity of C-H Functionalization Reactions. [PDF]

J Chem Inf Model
Walton PJ, Tatin H, Baxter A, Ermanis K, Denton RM, Hirst JD.   +5 more
europepmc   +1 more source

1,1‐Disubstituted Vinylbromides: Versatile Building Blocks for the Synthesis of Nitrogen‐Containing Heterocycles

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, Jun Fang, Chonghuo Liu, Guillaume Lefèvre, Gérard Guillamot, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +6 more
wiley   +1 more source

Switchable annulation paths to diverse N-bridged bicyclic scaffolds via ligand-directed dicarbonylation. [PDF]

Nat Commun
Liu YK, Yang P, Wang LC, Bao ZP, Wu XF.
europepmc   +1 more source

Properties of [Fe(salen)]2‐μ‐Oxo Derivatives and Their Effect on Catalytic Hydrophosphination

European Journal of Organic Chemistry, EarlyView.
A series of [Fe(salen)]2‐μ‐oxo and [Fe(salophen)]2‐μ‐oxo complexes were synthesized to probe how ligand electronics and backbone rigidity influence redox behavior and catalytic hydrophosphination of styrene. Electron‐withdrawing substituents enhance stability and activity, enabling tunable, efficient C–P bond formation.
Nathan J. Buxton, Edmund O. Dadge, Oliver S. Matys, Max A. A. Entwisle, Ruth L. Webster   +4 more
wiley   +1 more source

Cobalt-Catalyzed Highly Regioselective Alkoxycarbonylation of Olefins Driven by Light. [PDF]

J Am Chem Soc
Peng Y, Tian X, Cao Z, Vuong TH, Steinfeldt N, Zhang B, Jiao H, Junge H, Beller M.   +8 more
europepmc   +1 more source

Gold(I)‐Mediated Reactivity of Allenes With Mesoionic Nucleophiles: A Computational Exploration

European Journal of Organic Chemistry, EarlyView.
The regioselective gold(I)‐mediated reactivity of allenes with mesoionic nucleophiles has been evaluated through computational analysis of the mechanisms involved. Instead of typical (3 + 2) pathways, sydnones and münchnones favour the formal (3 + 3) cyclizations affording substituted dihydropyridines.
Eduardo Garcia‐Padilla, Feliu Maseras
wiley   +1 more source