Articles with "heterocyclic carbenes" as a keyword



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Ring‐Expanded N‐Heterocyclic Carbenes for Copper‐Mediated Azide–Alkyne Click Cycloaddition Reactions

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Published in 2018 at "Chemcatchem"

DOI: 10.1002/cctc.201701992

Abstract: A series of well‐defined copper(I) complexes bearing ring‐expanded N‐heterocyclic carbene (NHC) ligands has been applied to the azide–alkyne cycloaddition reaction. The obtained results notably showed that the six‐membered NHC ligands outperform well‐established five‐membered ones. [CuI(Mes‐6)]… read more here.

Keywords: heterocyclic carbenes; cycloaddition; copper; azide alkyne ... See more keywords
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Interaction ofN-Heterocyclic Carbenes and Simple Carbenes with Small Molecules (One to Three Atoms) Excluding Metals: Formation of Covalent C-X Bonds

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Published in 2018 at "Journal of Heterocyclic Chemistry"

DOI: 10.1002/jhet.3331

Abstract: This work was carried out with financial support from the Ministerio de Economia y Competitividad (project no. CTQ2015–63997–C2–2–P) and Comunidad Autonoma de Madrid (project FOTOCARBON, ref S2013/MIT–2841). Computer, storage, and other resources from the CTI… read more here.

Keywords: heterocyclic carbenes; simple carbenes; interaction ofn; carbenes small ... See more keywords
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Carbene triel bonds between TrR 3 (Tr = B, Al) and N‐heterocyclic carbenes

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Published in 2018 at "International Journal of Quantum Chemistry"

DOI: 10.1002/qua.25867

Abstract: The carbene triel bond is predicted and characterized by theoretical calculations. The C lone pair of N-heterocyclic carbenes (NHCs) is allowed to interact with the central triel atom of TrR3 (Tr = B and Al;… read more here.

Keywords: heterocyclic carbenes; bonds trr; bond; trr heterocyclic ... See more keywords
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Free N‐heterocyclic carbenes from Brønsted acidic ionic liquids: Direct detection by electrospray ionization mass spectrometry

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Published in 2022 at "Rapid Communications in Mass Spectrometry"

DOI: 10.1002/rcm.9338

Abstract: Rationale The occurrence of N‐heterocyclic carbenes in imidazolium‐based ionic liquids has long been discussed, but no spectroscopic evidence has been reported yet due to their transient nature. The insertion of an ionizable acid group into… read more here.

Keywords: mass spectrometry; nsted acidic; acidic ionic; ionic liquids ... See more keywords
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Remote Electronic Tuning of Chiral N-Heterocyclic Carbenes.

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Published in 2023 at "Chemical record"

DOI: 10.1002/tcr.202300103

Abstract: Our recent efforts to develop novel N-Heterocyclic carbene (NHC)-catalyzed asymmetric reactions are described. During our investigation for development of the acylation reactions via acylazoliums generated by the reactions of NHCs and α-oxidized aldehydes, we have… read more here.

Keywords: remote electronic; reaction; chiral heterocyclic; tuning chiral ... See more keywords
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Mechanochemical synthesis of platinum(IV) complexes with N-heterocyclic carbenes

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Published in 2018 at "Russian Chemical Bulletin"

DOI: 10.1007/s11172-018-2321-2

Abstract: A new method for the synthesis of complexes PtIV(NHC)X4L (NHC is N-heterocyclic carbene of imidazole or benzimidazole series; X = Cl, Br; L is N-coordinated pyridine or NHC) based on mechanochemical oxidation of complexes PtII(NHC)X2L… read more here.

Keywords: platinum complexes; heterocyclic carbenes; mechanochemical synthesis; complexes heterocyclic ... See more keywords
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Binding silver to chitooligosaccharides through N-heterocyclic carbenes: Synthesis and antimicrobial activity.

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Published in 2019 at "Carbohydrate research"

DOI: 10.1016/j.carres.2018.10.008

Abstract: Fil: Necol, Marcelo R.. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Bahia Blanca. Instituto de Quimica del Sur. Universidad Nacional del Sur. Departamento de Quimica. Instituto de Quimica del Sur;… read more here.

Keywords: heterocyclic carbenes; binding silver; del sur; carbenes synthesis ... See more keywords
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Theoretical NMR spectroscopy of N-heterocyclic carbenes and their metal complexes

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Published in 2017 at "Coordination Chemistry Reviews"

DOI: 10.1016/j.ccr.2016.12.015

Abstract: Abstract Recent theoretical analysis of the NMR properties of free N-heterocyclic carbenes (NHC) and metal-NHC complexes has complemented experiments, allowing the establishment of structure/property relationships and the rationalization of otherwise surprising experimental results. In this… read more here.

Keywords: heterocyclic carbenes; nmr spectroscopy; metal; spectroscopy heterocyclic ... See more keywords
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Protected N-heterocyclic carbenes as latent organocatalysts for the low-temperature curing of anhydride-hardened epoxy resins

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Published in 2017 at "European Polymer Journal"

DOI: 10.1016/j.eurpolymj.2017.05.032

Abstract: Abstract Epoxy resins based on commonly used epoxy compounds, various anhydrides and CO2-protected N-heterocyclic carbenes (NHCs), which combine the favorable properties of fast curing at low reaction temperatures, pot life in the range of hours… read more here.

Keywords: protected heterocyclic; heterocyclic carbenes; organocatalysts low; epoxy resins ... See more keywords
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Sonogashira-type cross-coupling reactions catalyzed by copper complexes of pincer N-heterocyclic carbenes

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Published in 2018 at "Journal of Organometallic Chemistry"

DOI: 10.1016/j.jorganchem.2018.02.028

Abstract: Abstract Copper complexes of N-heterocyclic carbenes (NHC) have recently received great attention in catalysis, however, the application scope has been limited to neutral complexes bearing monodentate ligands. Herein, we report the synthesis and full characterization… read more here.

Keywords: heterocyclic carbenes; copper complexes; copper; reaction ... See more keywords
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N-Heterocyclic carbenes as “smart” gold nanoparticle stabilizers: State-of-the art and perspectives for biomedical applications

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Published in 2021 at "Journal of Organometallic Chemistry"

DOI: 10.1016/j.jorganchem.2021.121743

Abstract: Abstract The unique properties and high synthetic flexibility of N-heterocyclic carbenes (NHCs) have made them highly attractive tools for the development of new nanomaterials and the fundamental study of their properties. In this review, we… read more here.

Keywords: heterocyclic carbenes; stabilizers state; smart gold; nanoparticle stabilizers ... See more keywords