Results 81 to 90 of about 13,631,199 (274)

Cobalt-catalyzed directed C–H alkenylation of pivalophenone N–H imine with alkenyl phosphates

open access: yesBeilstein Journal of Organic Chemistry, 2018
A cobalt–N-heterocyclic carbene (NHC) catalyst efficiently promotes an ortho C–H alkenylation reaction of pivalophenone N–H imine with an alkenyl phosphate. The reaction tolerates various substituted pivalophenone N–H imines as well as cyclic and acyclic
Wengang Xu, Naohiko Yoshikai
doaj   +1 more source

(NHC)Pd(II) hydride-catalyzed dehydroaromatization by olefin chain-walking isomerization and transfer-dehydrogenation

open access: yesNature Communications, 2022
Aromatic compounds can be prepared via dehydrogenation of cyclic compounds. Here the authors report the dehydroaromatization of endocyclic and exocyclic olefins via chain-walking isomerization and transfer-dehydrogenation catalyzed by palladium N ...
Weihao Chen   +4 more
doaj   +1 more source

Iridium phosphine abnormal N-heterocyclic carbene complexes in catalytic hydrogen transfer reactions

open access: yes, 2011
Iridium phosphine abnormal N-heterocyclic carbene complexes in catalytic hydrogen transfer reactionsSeveral iridium complexes bearing chelating abnormal N-heterocyclic carbenes (NHCs) are shown to be active catalysts for transfer hydrogenation of ketones
李兴伟   +4 more
core   +1 more source

Catalytic Hydrogenation of α,β-Unsaturated Carboxylic Acid Derivatives Using copper(I)/N-Heterocyclic Carbene Complexes [PDF]

open access: yes, 2018
A simple and air-stable copper(I)/N-heterocyclic carbene complex enables the catalytic hydrogenation of hitherto unreactive enoates and enamides employing H2 as terminal reducing agent.
Birte, Zimmermann, Johannes F., Teichert
core   +2 more sources

NHC‐Copper(I)‐Mediated Functionalization of White Phosphorus

open access: yesAngewandte Chemie, EarlyView.
White phosphorus is functionalized by N‐heterocyclic carbene supported copper(I) complexes through redox‐neutral steps. Treatment of the resulting complexes with electrophiles releases the ligands from the metal center as asymmetrically substituted organophosphorus butterfly compounds.
Thomas M. Horsley Downie   +4 more
wiley   +2 more sources

Enhancing stability by trapping palladium inside N-heterocyclic carbene-functionalized hypercrosslinked polymers for heterogeneous C-C bond formations

open access: yesNature Communications, 2021
Catalyst deactivation caused by the aggregation of active metal species poses great challenges for supported metal catalyzed solid-liquid reactions. Here, the authors develop a hypercrosslinked polymer integrated with N-heterocyclic carbene (NHC) as ...
Chengtao Yue   +5 more
doaj   +1 more source

Flexible cycloalkyl-substituted N-heterocyclic carbenes

open access: yesDalton Transactions, 2010
The use of two metal systems cis-Pt(NHC)(2)Me(2) and cis-Ir(NHC)(CO)(2)Cl help to highlight the flexibility of a series of cycloalkyl-substituted N-heterocyclic carbene ligands (ICy, ICy(7), ICy(8), ICy(12)). Bond dissociation enthalpies of several N-heterocyclic carbenes (NHCs) in cis-Pt(NHC)(2)Me(2) are estimated.
Fortman   +3 more
openaire   +2 more sources

Photofunctional Platinum Complexes Featuring N-heterocyclic Carbene-Based Pincer Ligands

open access: yes, 2015
Photoactive platinum complexes of stoichiometry [Pt(RCCCR)L]0/+ (R=Me, nBu and L=[BOND]CN, [BOND]C≡CPh, [BOND]N≡CCH3, [BOND]Py, [BOND]CO) featuring pincer-type bis N-heterocyclic carbene (NHC) ligands (RCCCR) were synthesized. Organometallic syntheses of
Hwang, Wen-Shu   +1 more
core   +1 more source

Tethered N‑Heterocyclic Carbene-Carboranyl Silver Complexes for Cancer Therapy [PDF]

open access: yes, 2019
Silver complexes of tethered N-heterocyclic carbene-carboranyl ligands have been prepared and fully characterized. The first example of silver bonded directly to the cage of o-carborane has been identified in the solid state.
Charlotte E. Willans (1355577)   +15 more
core   +2 more sources

Crystal structure of (η4-cyclooctadiene)(3,3′-dimesityl-1,1′-methylenediimidazoline-2,2′-diylidene)nickel(0) tetrahydrofuran monosolvate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2018
The crystal structure of the title compound, [Ni(C25H28N4)(C8H12)]·C4H8O or (MesNHC2Me)Ni(COD), which contains a bidentate N-heterocyclic carbene (NHC) ligand with mesityl aryl groups is reported.
Carlos D. Yamamoto   +2 more
doaj   +1 more source

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