Results 91 to 100 of about 8,786 (262)

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Borylated N-heterocyclic carbenes: rearrangement and chemical trapping [PDF]

, 2018
This study details attempts to access N-heterocyclic carbenes (NHCs) featuring the diazaborolyl group, {(HCNDipp)2 B}, as one or both of the N-bound substituents, to generate strongly electron-donating and sterically imposing new carbene ligands ...
Kolychev, EL, Fuentes, MÁ, Thompson, Amber, Campos, J, Kristinsdóttir, L, Vasko, P, Aldridge, S, Hicks, J, Thompson, AL, Niu, H, Aldridge, Simon   +10 more
core   +2 more sources

Changing N^C^O to C^N^O Coordination in Cyclometalated Pt(II) and Pd(II) Complexes Modulates Stability and Emission Characteristics: Toward Brighter Versatility

Chemistry – A European Journal, EarlyView.
A new class of cyclometalated metal complexes with pincer luminophores (C^N^O and N^C^O) is reported. They unite high photoluminescence efficiencies in liquid solutions at r.t. with tunable colors across the visible spectrum and convenient synthetic accessibility.
Joschua Lüke, Yokari Godinez‐Loyola, Alexander Hepp, Jutta Kösters, Cristian A. Strassert   +4 more
wiley   +1 more source

Synthesis and Characterization of N-Heterocyclic Carbene-Coordinated Silicon Compounds Bearing a Fused-Ring Bulky Eind Group

Inorganics, 2018
The reactions of the fused-ring bulky Eind-substituted 1,2-dibromodisilene, (Eind)BrSi=SiBr(Eind) (1a) (Eind = 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl (a)), with N-heterocyclic carbenes (NHCs) (Im-Me4 = 1,3,4,5-tetramethylimidazol-2-ylidene and Im ...
Naoki Hayakawa, Kazuya Sadamori, Shinsuke Mizutani, Tomohiro Agou, Tomohiro Sugahara, Takahiro Sasamori, Norihiro Tokitoh, Daisuke Hashizume, Tsukasa Matsuo   +8 more
doaj   +1 more source

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

New Ligands Beyond N-Heterocyclic Carbenes for Application in Homogeneous Catalysis

CHIMIA
Building on the success of N-heterocyclic carbenes, extended versions comprised of an exocyclic metal bonding site have become increasingly popular.
Kevin Salzmann, Esaie Reusser, Nicolas Lentz, Alexander J. Bukvic, Martin Albrecht   +4 more
doaj   +1 more source

Lewis‐Acidic Properties and Catalytic Behavior of Hydroboration‐ and Diolysis‐Derived NHC‐Stabilized Borenium Cations

Chemistry – A European Journal, EarlyView.
A series of thirteen (N‐heterocyclic carbene) NHC‐stabilized borenium cations is synthesized from NHC→BH3 complexes via hydroboration and condensation with diols. The novel compounds are fully characterized. Eight crystal structures are presented. Kinetic and NMR data show how the structural features translate to catalytic activity in hydrosilylation ...
Michał Jakubczyk, Michaela Buziková, Matouš Kloda, Miroslava Litecká, Karel Škoch   +4 more
wiley   +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  

NHI- and NHC-Supported Al(III) Hydrides for Amine–Borane Dehydrocoupling Catalysis

Inorganics, 2019
The catalytic dehydrocoupling of amine−boranes has recently received a great deal of attention due to its potential in hydrogen storage applications.
Catherine Weetman, Nozomi Ito, Masafumi Unno, Franziska Hanusch, Shigeyoshi Inoue   +4 more
doaj   +1 more source

Strain Release of 1‐Azabicyclo[1.1.0]butanes as a Gateway to Highly Functionalized Azetidines: New Strategies and Structural Motifs

Chemistry – A European Journal, EarlyView.
Over the past decade, the interest in azetidines has continuously risen, by virtue of their highly appealing pharmaceutical properties. Monocyclic, spirocyclic, and bridged azetidines can be accessed by leveraging 1‐azabicyclo[1.1.0]butanes as precursors.
Yuri Gelato, Philipp Natho, Marco Colella, Renzo Luisi   +3 more
wiley   +1 more source