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The Mechanism of N‐Heterocyclic Carbene Organocatalysis through a Magnifying Glass
O Hollóczki - Chemistry–A European Journal, 2020 - Wiley Online Library
The term “N‐Heterocyclic carbene organocatalysis” is often invoked in organic synthesis for
reactions that are catalyzed by different azolium salts in the presence of bases. Although the …
reactions that are catalyzed by different azolium salts in the presence of bases. Although the …
Charge‐Tagged N‐Heterocyclic Carbenes (NHCs): Revealing the Hidden Side of NHC‐Catalysed Reactions through Electrospray Ionization Mass Spectrometry
N‐heterocyclic carbenes (NHCs) are key intermediates in a variety of chemical reactions.
Owing to their transient nature, the interception and characterization of these reactive …
Owing to their transient nature, the interception and characterization of these reactive …
Formation, Oxidation, and Fate of the Breslow Intermediate in the N-Heterocyclic Carbene-Catalyzed Aerobic Oxidation of Aldehydes
The reaction paths and intermediate structures related to the formation of the Breslow
intermediate and its oxidation along the oxidative/oxygenative lanes have been studied from …
intermediate and its oxidation along the oxidative/oxygenative lanes have been studied from …
Breslow Intermediates (Amino Enols) and Their Keto Tautomers: First Gas‐Phase Characterization by IR Ion Spectroscopy
M Paul, K Peckelsen, T Thomulka… - … A European Journal, 2021 - Wiley Online Library
Breslow intermediates (BIs) are the crucial nucleophilic amino enol intermediates formed
from electrophilic aldehydes in the course of N‐heterocyclic carbene (NHC)‐catalyzed …
from electrophilic aldehydes in the course of N‐heterocyclic carbene (NHC)‐catalyzed …
N‐Heterocyclic Carbene Organocatalysis: With or Without Carbenes?
In this work the mechanism of the aldehyde umpolung reactions, catalyzed by azolium
cations in the presence of bases, was studied through computational methods. Next to the …
cations in the presence of bases, was studied through computational methods. Next to the …
An electrospray-active N-heterocyclic carbene ligand for real-time analysis of organometallic reactions
A charge-tagged N-heterocyclic carbene (NHC) has been synthesized and its utility in
allowing the dynamic behaviour of metal complexes to be monitored in real time using …
allowing the dynamic behaviour of metal complexes to be monitored in real time using …
Gas Phase Studies of N-Heterocyclic Carbene-Catalyzed Condensation Reactions
Y Tian, JK Lee - The Journal of Organic Chemistry, 2015 - ACS Publications
N-Heterocyclic carbenes (NHCs) catalyze Umpolung condensation reactions of carbonyl
compounds, including the Stetter reaction. These types of reactions have not heretofore …
compounds, including the Stetter reaction. These types of reactions have not heretofore …
Synthesis and Applications of an Electrospray-Active N-Heterocyclic Carbene for Electrospray Ionization Mass Spectrometric Analysis of Organometallic Compounds
C Killeen, AG Oliver, JS McIndoe - 2024 - chemrxiv.org
A charge-tagged N-heterocyclic carbene (NHC) has been synthesized and its utility in
allowing the dynamic behaviour of metal complexes to be monitored in real time using …
allowing the dynamic behaviour of metal complexes to be monitored in real time using …
Probing the gas-phase structure of charge-tagged intermediates of a proline catalyzed aldol reaction–vibrational spectroscopy distinguishes oxazolidinone from …
JA Willms, J Vidic, J Barthelmes, V Steinmetz… - Physical Chemistry …, 2019 - pubs.rsc.org
An L-proline based catalyst with a charged phenyl-pyridium substituent (1) was used to
analyze intermediates of an organocatalyzed aldol reaction by infrared multi-photon …
analyze intermediates of an organocatalyzed aldol reaction by infrared multi-photon …
E-Selective N-heterocyclic carbene-catalyzed reaction of aldehydes and butadienoates: effect of water and chloroform as the proton shuttle
D Ma, Y Song, C Fu, F Zhang, Y Guo… - Organic Chemistry …, 2018 - pubs.rsc.org
As we know, there are many reports on the reactions of the Breslow intermediate with
electron-deficient alkenes or alkynes. However, the reactions with allenes are much less …
electron-deficient alkenes or alkynes. However, the reactions with allenes are much less …