Results 1 to 10 of about 14,653 (264)
Beilstein Journal of Organic Chemistry, 2015 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 ...
Steven P. Nolan
doaj +3 more sources
N-Heterocyclic Germylenes: Structural Characterisation of Some Heavy Analogues of the Ubiquitous N-Heterocyclic Carbenes [PDF]
Heteroatom Chemistry, 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).
Christopher A. Dodds +2 more
doaj +3 more sources
Synthesis of Platinum(II) N-Heterocyclic Carbenes Based on Adenosine [PDF]
Molecules, 2021 Organometallic derivatization of nucleosides is a highly promising strategy for the improvement of the therapeutic profile of nucleosides. Herein, a methodology for the synthesis of metalated adenosine with a deprotected ribose moiety is described ...
Maria Inês P. S. Leitão +3 more
doaj +2 more sources
Photoactive Neutral Three-Coordinate Cu(I) Complexes of Anionic N‑Heterocyclic Carbenes [PDF]
JACS AuLars E. Burmeister +8 more
doaj +2 more sources
Gold Mono- and Bis-N-heterocyclic Carbenes Based on mRNA cap0 [PDF]
ACS OmegaGiulia Francescato +2 more
doaj +2 more sources
Oxidative N‐Heterocyclic Carbene Catalysis
Chemistry – A European Journal, 2022 AbstractN‐Heterocyclic carbene (NHC) catalysis is a by now consolidated organocatalytic platform for a number of synthetic (asymmetric) transformations via diverse reaction modes/intermediates. In addition to the typical umpolung processes involving acyl anion/homoenolate equivalent species, implementation of protocols under oxidative conditions ...
Carmela De Risi +5 more
openaire +2 more sources
Nature Communications, 2022 Conformational isomerization of organic molecules can be guided by noncovalent interactions. Here, the authors report the synthesis of chiral sulfoxides catalyzed by N-heterocyclic carbenes; intramolecular chalcogen bonding interactions are key for ...
Jianjian Liu +4 more
doaj +1 more source
Communications Chemistry, 2022 N-heterocyclic carbenes are widely exploited as ligands in transition metal catalysis, but are largely limited to N-arylimidazolylidenes. Here, the authors report on the steric and electronic properties of thiazol-2-ylidenes, demonstrating that their ...
Jin Zhang +10 more
doaj +1 more source
N-Heterocyclic carbene-catalyzed oxidations [PDF]
Tetrahedron, 2009 N-Heterocyclic carbenes catalyze the oxidation of allylic and benzylic alcohols as well as saturated aldehydes to esters with manganese(IV) oxide in excellent yields. A variety of esters can be synthesized, including protected carboxylates. The oxidation proceeds under mild conditions, with low loadings of a simple triazolium salt pre-catalyst in the ...
Brooks E, Maki +3 more
openaire +2 more sources