Results 91 to 100 of about 13,617,516 (263)

Aza‐Büchner–Curtius–Schlotterbeck Reaction Enables Selective Construction of Quaternary Carbon Centers

Angewandte Chemie International Edition, EarlyView.
We introduce the Aza‐Büchner–Curtius–Schlotterbeck (ABCS) reaction: A mild, catalyst‐free method for homologating aryl imines. Diverging from the traditional BCS mechanism, the diazo intermediate undergoes selective C─C insertion to form an all‐carbon quaternary center.
Simon O. Angerer, Vincent George, Aryaman Pattanik, Gaia Carpentiero, Tereza Morcinková, Julia Rehbein, Burkhard König   +6 more
wiley   +1 more source

Backbone tuning in indenylidene–ruthenium complexes bearing an unsaturated N-heterocyclic carbene

Beilstein Journal of Organic Chemistry, 2010
The steric and electronic influence of backbone substitution in IMes-based (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) N-heterocyclic carbenes (NHC) was probed by synthesizing the [RhCl(CO)2(NHC)] series of complexes to quantify ...
César A. Urbina-Blanco, Xavier Bantreil, Hervé Clavier, Alexandra M. Z. Slawin, Steven P. Nolan   +4 more
doaj   +1 more source

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

Angewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean, Nicolás Montesdeoca, Gilles Berger, Johannes Karges   +3 more
wiley   +1 more source

N-Heterocyclic Carbene Coinage Metal Complexes Containing Naphthalimide Chromophore: Design, Structure, and Photophysical Properties

Inorganics, 2017
A series of novel N-heterocyclic carbene coinage metal complexes containing a naphthalimide (NI) chromophore has been prepared and fully characterized. Two types of molecules are described those where the NI unit is directly attached to the carbene unit ...
Pierre-Henri Lanoë, Btissam Najjari, Florine Hallez, Geoffrey Gontard, Hani Amouri   +4 more
doaj   +1 more source

The Use of N-Heterocyclic Carbenes in Transition Metal Catalysis [PDF]

, 2005
N-heterocyclic carbenes have been used as ligands for metals compounds that are function as catalysts to perform a variety of organic chemical transformations. These catalysts have been used in olefin metathesis, cross coupling reactions to form C-C or C-
Walters, Robert William
core  

Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes

, 2017
Ho NKT, Neumann B, Stammler H-G, et al. Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes. DALTON TRANSACTIONS. 2017;46(36):12027-12031.A highly efficient nickel catalysed method for the direct C2-arylation of N-heterocyclic carbenes (NHCs)
Hans-Georg Stammler, Ataualpa A. C. Braga, Beate Neumann, Stammler, Hans-Georg, Watanabe, Daniel G., Vitor H. Menezes da Silva, Rajendra S. Ghadwal, Daniel G. Watanabe, Ho, Nga Kim T., Neumann, Beate, Braga, Ataualpa A. C., Menezes da Silva, Vitor H., Ghadwal, Rajendra ; https://orcid.org/, Nga Kim T. Ho   +13 more
core   +1 more source

A Ruthenium(CAAC‐5) Olefin Metathesis Catalyst for Bioconjugation

Angewandte Chemie International Edition, EarlyView.
The aqueous instability of ruthenium catalysts restricts olefin metathesis in biological media. A Ru(CAAC‐5) complex bearing an aniline handle is reported that remains active under biologically relevant conditions and enables bioconjugation to proteins, peptides, and an artificial metalloenzyme, providing a robust platform for olefin metathesis in ...
Damian Alexander Graf, Mikhail Boym, María Álvarez, Tsvetan Kardashliev, Thomas R. Ward   +4 more
wiley   +1 more source

2.1.1 Historical Overview of N-Heterocyclic Carbenes in Alkene Metathesis

, 2018
This chapter is a short outline of the historic development of the use of N-heterocyclic carbenes as co-ligands in alkene metathesis catalysts.
C. Slugovc
core   +1 more source

Molecular docking analysis of N-heterocyclic carbene and silver N-heterocyclic carbene complexes with thioredoxin reductas

, 2020
Department of Chemistry, Faculty of Art and Science, Ordu University, 52200 Ordu, Turkey Department of Basic Education, Faculty of Education, Cumhuriyet University, 58140 Sivas, Turkey E-mail: elvanustun@odu.edu.tr Manuscript received online 20 October 2020, revised and accepted 31 October 2020 Molecular docking is a frequently used method in computer ...
Üstün, Elvan, Şahin, Neslihan
openaire   +2 more sources

Chiral Copper Catalysis in Enantioselective Domino Reactions

Molecules
This review updates the field of enantioselective copper-catalysed domino reactions promoted by chiral green copper catalysts, covering the literature since 2017.
Hélène Pellissier
doaj   +1 more source