Results 11 to 20 of about 36,419 (269)

Ruthenium-Based Heterocyclic Carbene-Coordinated Olefin Metathesis Catalysts [PDF]

open access: yesChemical Reviews, 2010
The fascinating story of olefin (or alkene) metathesis (eq 1) began almost five decades ago, when Anderson and Merckling reported the first carbon-carbon double-bond rearrangement reaction in the titanium-catalyzed polymerization of norbornene.
Grubbs, Robert H.   +1 more
core   +3 more sources

N‐Heterocyclic Carbenes [PDF]

open access: yesEuropean Journal of Inorganic Chemistry, 2009
The N-heterocyclic carbenes (NHC) now hold a preferred-ligand status in organic and organometallic chemistry. Their role in catalysis continues to grow. When the editorial staff at the Beilstein Journal of Organic Chemistry contacted me to act as a guest editor for the thematic series “N-Heterocyclic carbenes”, I was more than happy to accept what ...
openaire   +3 more sources

Mechanochemical solid state synthesis of copper(I)/NHC complexes with K3PO4

open access: yesBeilstein Journal of Organic Chemistry, 2023
A protocol for the mechanochemical synthesis of copper(I)/N-heterocyclic carbene complexes using cheap and readily available K3PO4 as base has been developed.
Ina Remy-Speckmann   +4 more
doaj   +1 more source

Bulky-yet-flexible carbene ligands and their use in palladium cross-coupling [PDF]

open access: yes, 2019
In recent years, several classes of new N-heterocyclic carbene (NHC) ligands were developed around the concept of flexible steric bulk. The steric hindrance of these ligands brings stability to the active species, while ligand flexibility still allows ...
Cazin, Catherine   +2 more
core   +1 more source

Reactive Palladium Carbenes: Migratory Insertion and Other Carbene-Hydrocarbyl Coupling Reactions on Well-Defined Systems [PDF]

open access: yes, 2018
Producción CientíficaPalladium complexes with carbene ligands are among the best known and more extensively used catalysts. Those carbenes are usually NHC or N,N-disubstituted derivatives and their use relies on the robust nature of the carbene ligands ...
Albéniz Jiménez, Ana Carmen
core   +2 more sources

Alkali-metal-mediated zincation (AMMZn) meets N-heterocyclic carbene (NHC) chemistry : Zn–H exchange reactions and structural authentication of a dinuclear Au(I) complex with a NHC anion [PDF]

open access: yes, 2013
Merging two evolving areas in synthesis, namely cooperative bimetallics and N-heterocyclic carbenes (NHCs), this study reports the isolation of the first intermediates of alkali-metal-mediated zincation (AMMZn) of a free NHC and a Zn–NHC complex using ...
Aldeco-Perez   +55 more
core   +1 more source

Dataset of polyoxometalate-assisted N-heterocyclic carbene gold(I) complexes

open access: yesData in Brief, 2019
The present paper is the Supplemental materials for our original paper entitled “highly active, homogeneous catalysis by polyoxometalate-assisted N-heterocyclic carbene gold(I) complexes for hydration of diphenylacetylene.
Kenji Nomiya   +6 more
doaj   +1 more source

N-heterocyclic germylenes: structural characterisation of some heavy analogues of the ubiquitous N-heterocyclic carbenes [PDF]

open access: yes, 2019
The X-ray crystal structures of three N-heterocyclic germylenes (NHGes) have been elucidated including the previously unknown 1,3-bis(2,6-dimethylphenyl)diazagermol-2-ylidene (1).
Dodds, Christopher A.   +2 more
core   +2 more sources

3,5-Bis(3-methylimidazolium-1-ylmethyl)toluene bis(hexafluorophosphate)

open access: yesActa Crystallographica Section E, 2010
The asymmetric unit of the title N-heterocyclic carbene compound, C17H22N42+·2PF6−, consists of one N-heterocyclic carbene dication and two hexafluorophosphate anions.
Hoong-Kun Fun   +4 more
doaj   +1 more source

[(1,2,5,6-η)-Cycloocta-1,5-diene](1-ethyl-4-isopropyl-1,2,4-triazol-5-ylidene)(triphenylphosphane)iridium(I) tetrafluoridoborate dichloromethane sesquisolvate

open access: yesIUCrData, 2023
The synthesis and crystal structure of a new triazole-based N-heterocyclic carbene iridium(I) cationic complex with a tetrafluoridoborate counter-anion and solvating dichloromethane, [Ir(C8H12)(C7H13N3)(C18H15P)]BF4·1.5CH2Cl2, is reported. The IrI center
Aaron Maynard   +3 more
doaj   +1 more source

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