Results 101 to 110 of about 101,444 (317)

A laterally-fused N-heterocyclic carbene framework from polysubstituted aminoimidazo[5,1-b]oxazol-6-ium salts

Beilstein Journal of Organic Chemistry
A polysubstituted 3-aminoimidazo[5,1-b]oxazol-6-ium framework has been accessed from a new nitrenoid reagent by a two-step ynamide annulation and imidazolium ring-formation sequence. Metalation with Au(I), Cu(I) and Ir(I) at the C2 position provides an L-
Andrew D. Gillie, Matthew G. Wakeling, Bethan L. Greene, Louise Male, Paul W. Davies   +4 more
doaj   +1 more source

In Silico SwissADME Analysis of Antibacterial NHC–Silver Acetates and Halides Complexes

Applied Sciences
This study investigates the antibacterial N-heterocyclic carbene (NHC)–silver complexes using the SwissADME platform, a web-based tool developed by the Swiss Institute of Bioinformatics (SIB).
Jarosław Sączewski, Łukasz Popenda, Joanna Fedorowicz   +2 more
doaj   +1 more source

A theoretical study of the mechanism of the addition reaction between carbene and azacyclopropane [PDF]

Journal of the Serbian Chemical Society, 2010
The mechanism of the addition reaction between carbene and azacyclopropane was investigated using the second-order Moller–Plesset perturbation theory (MP2).
XIAOJUN TAN, PING LI, WEIHUA WANG, GENGXIU ZHENG, QIUFEN WANG   +4 more
doaj  

Ru(II)Porphyrinate-based molecular nanoreactor for carbene insertion reactions and quantitative formation of rotaxanes by active-metal-template syntheses

Nature Communications, 2020
Selectivity in carbene insertion reactions promoted by Ru(II)porphyrinates is achieved only upon careful control of substrate stoichiometry. Here, the authors demonstrate that endotopic catalysis and formation of mechanical bonds enables carbene ...
Liniquer A. Fontana, Marlon P. Almeida, Arthur F. P. Alcântara, Vitor H. Rigolin, Marcos A. Ribeiro, Wdeson P. Barros, Jackson D. Megiatto   +6 more
doaj   +1 more source

Gold(I)-catalyzed synthesis of γ-vinylbutyrolactones by intramolecular oxaallylic alkylation with alcohols

Beilstein Journal of Organic Chemistry, 2011
Gold(I)-N-heterocyclic carbene (NHC) complexes proved to be a reliable catalytic system for the direct synthesis of functionalized γ-vinylbutyrolactones by intramolecular oxaallylic alkylation with primary alcohols.
Michel Chiarucci, Mirko Locritani, Gianpiero Cera, Marco Bandini   +3 more
doaj   +1 more source

An Achiral Tetradentate Cis-α-Coordinating NCCN Ligand Gives Rise to a Configurationally Stable Chiral-at-Iron Complex for Enantioselective Catalysis. [PDF]

Chemistry
The design and synthesis of a linear tetradentate NCCN ligand incorporating two 1,2,3‐triazolin‐5‐ylidene mesoionic carbene donors, and its application to asymmetric iron catalysis is reported. This work represents the first example of an iron complex derived from a cis‐α‐coordinating tetradentate NCCN ligand, and notably, the first chiral iron ...
Hinterlang L, Demirel N, Ivlev SI, Meggers E.   +3 more
europepmc   +2 more sources

Synthesis and Activity of Six-Membered Cyclic Alkyl Amino Carbene–Ruthenium Olefin Metathesis Catalysts [PDF]

, 2020
Ru–cyclic alkyl amino carbene (Ru–CAAC) olefin metathesis catalysts perform extraordinarily in metathesis macrocyclization and ethenolysis, but previous studies have been limited to the use of five-membered CAAC (CAAC-5) ligands.
Grubbs, Robert H., Samkian, Adrian E., Virgil, Scott C., Xu, Yan, Yoon, Ki-Young   +4 more
core  

SYNTHESIS OF SILVER- AND GOLD-N-HETEROCYCLIC CARBENE COMPLEXES INCLUDING STRONG METAL-CARBON BINDING

, 2021
Nazan Kaloğlu, İsmaıl Özdemır
openalex   +2 more sources

Mechanochromic Organic Materials: Molecular Mechanisms and Multidimensional Applications

Advanced Physics Research, EarlyView.
Mechanochromic (MC) organic materials change color in response to mechanical force. This review elucidates the molecular mechanisms (e.g., aggregation‐induced emission, AIE) and explores their multidimensional applications in sensors, anti‐counterfeiting, biomedical devices, and structural health monitoring, providing a roadmap for future smart ...
Xiaozhe Yin, Guoliang Niu, Yu Wang, Angela Wittmann, Huiyang Gou, Lang Jiang   +5 more
wiley   +1 more source

Redox‐Active Frustrated Lewis Pair‐Mediated B─H Bond Activation: From Proton Transfer to THF Ring Opening

ChemistryEurope, EarlyView.
Carbene‐stabilized dithiolene zwitterion, as a redox‐active frustrated Lewis pair, can mediate the B─H bond activation of catecholborane via hydride‐coupled reverse electron transfer processes. This discovery represents the first experimental evidence of the FLP‐mediated B─H activation via net proton transfer.
Yuzhong Wang, Phuong M. Tran, Pingrong Wei, Mitchell E. Lahm, Henry F. Schaefer III, Gregory H. Robinson   +5 more
wiley   +1 more source