Ring Expansion Of Alkylidenecarbenes Derived From Lactams, Lactones, And Thiolactones Into Strained Heterocyclic Alkynes: A Theoretical Study [PDF]
Strained cycloalkynes are of considerable interest to theoreticians and experimentalists, and possess much synthetic value as well. Herein, a series of cyclic alkylidenecarbenes—formally obtained by replacing the carbonyl oxygen of four-, five-, and six ...
Just, J. +4 more
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Self-Supported N-Heterocyclic Carbenes and Their Use as Organocatalysts
The study of N-heterocyclic carbenes (NHCs) as organocatalysts has proliferated in recent years, and they have been found to be useful in a variety of reactions.
Shuang Ma, Patrick H. Toy
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The promise of N-heterocyclic carbenes to capture and valorize carbon dioxide
With increasing environmental concerns due to the anthropologic emissions of greenhouse gasses, especially carbon dioxide (CO2), the development of new technologies to capture the latter is of great public value. While amino-containing materials excel in
Pierre Stiernet +3 more
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Aerobic Oxidative N‐Heterocyclic Carbene Catalysis
AbstractThe ease with which simple starting materials can be transformed into highly functionalized products has made oxidative N‐heterocyclic carbene (NHC) catalysis an area of significant interest. However, the use of stoichiometric amounts of high molecular weight oxidants in most reactions generates an undesired equivalent amount of waste.
Simon Stenkvist +3 more
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Types and properties of metal-free catalysts for living polymerizations of biomaterials [PDF]
Syntéza biokompatibilních a biodegradabilních polyesterů, použitelných převážně v medicíně, využívá pro polymeraci za otevření kruhu katalyzátory na bázi kovu (např. Sn, Al atd.), které se mohou po implantaci deponovat v těle.
Repka, Martin
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N-Heterocyclic carbene-stabilised arsinidene (AsH) [PDF]
N-Heterocyclic carbene adducts of the parent arsinidene (AsH) were prepared by two different synthetic routes, either by reaction of As(SiMe3)3 with 2,2-difluoroimidazolines followed by desilylation or by reaction of [Na(dioxane)3.31][AsCO] with imidazolium chlorides.
Adinarayana Doddi +6 more
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First direct evidence of N-heterocyclic carbene in BMIm acetate ionic liquid. An electrochemical and chemical study on the role of temperature [PDF]
Cyclic voltammetry provides the first direct evidence of N-heterocyclic carbene (NHC) presence in neat 1-‐butyl-3-methylimidazolium acetate ionic liquid (BMImAcO) at 120°C. The NHC existence, proved by its oxidation current in cyclic voltammetry, was
Chiarotto, I., Feroci, M., Inesi, A.
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Synthesis and Coordination Compounds of A Bis(Imino)Acenaphthene (Bian)-Supported N-Heterocyclic Carbene [PDF]
The bis(imino)acenaphthene-supported N-heterocyclic carbene IPr(BIAN) has been prepared by deprotonation of the precursor imidazolium chloride. Treatment of IPr(BIAN) imidazolium chloride with Ag(2)O afforded the silver complex [IPr(BIAN)]AgCl which can ...
Abernethy, Colin D. +3 more
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Synthesis and Study of Olefin Metathesis Catalysts Supported by Redox-Switchable Diaminocarbene 3 Ferrocenophanes [PDF]
A redox-switchable ligand, N,N'-dimethyldiaminocarbene[3]ferrocenophane (5), was synthesized and incorporated into a series of Ir- and Ru-based complexes.
Bielawski, Christopher W. +4 more
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Electrogenerated N-Heterocyclic Carbene in Ionic Liquid: An Insight into the Mechanism of the Oxidative Esterification of Aromatic Aldehydes [PDF]
An N-heterocyclic carbene (NHC), generated by cathodic reduction of BMImBF4, mediates the oxidative esterification of aromatic aldehydes with organic bromides in the corresponding ionic liquid as solvent. The product recovery by simple extractive work-up
CHIAROTTO, Isabella +4 more
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