Results 81 to 90 of about 51,237 (293)

Anionic N-heterocyclic carbenes by decarboxylation of sydnone-4-carboxylates [PDF]

, 2018
Unstable N-heterocyclic carbenes can be masked and stabilized as pseudo-cross-conjugated hetarenium-carboxylates which decarboxylate on warming. This study deals with the decarboxylation of carboxylates of mesoionic compounds to generate anionic N ...
Andreas Schmidt, Foeldes, Tamas, Imre Pápai, Papai, Imre, Adam, Arnold, Ana-Luiza Lücke, Sascha Wiechmann, Mimoza Gjikaj, Luecke, Ana-Luiza, Martin Nieger, Schmidt, Andreas, Nieger, Martin, Arnold Adam, Adam, Arnold E. W., Tyll Freese, Freese, Tyll, Lücke, Ana-Luiza, Gjikaj, Mimoza, Wiechmann, Sascha, Földes, Tamás, Tamás Földes   +20 more
core   +1 more source

Electroenzymatic CO2 Fixation

Angewandte Chemie International Edition, EarlyView.
Electroenzymatic CO2 fixation enables energy‐efficient, highly selective synthesis of complex molecules. Unlocking its full potential requires fundamental understanding of electrode‐coupled reductases and carboxylases. This review critically discusses available enzymes, product scope, and key thermodynamic and kinetic considerations, highlighting ...
Leonardo Castañeda‐Losada, Michael Richter, Christophe Léger, Vincent Fourmond, Nicolas Plumeré   +4 more
wiley   +1 more source

Oxidative decarboxylation of unsaturated fatty acids

, 2011
Long-chain internal olefins were prepared by silver(II)-catalyzed oxidative decarboxylation of unsaturated fatty acids by sodium peroxydisulfate. Similar to saturated carboxylic acids, 1-alkenes were the major decarboxylation product in the additional ...
Hoorn, M.H., van den, Klis, F., van der, Es, D.S., van, Blaauw, R., Haveren, J., van   +4 more
core   +2 more sources

Electrolyte dependence for the electrochemical decarboxylation of medium-chain fatty acids (n-octanoic acid) into fuel on Pt electrode

Materials Reports: Energy
The deoxygenation of organic acids, important biomass feedstocks and derivatives, to synthesize hydrocarbon products under mild electrochemical conditions, holds significant importance for the production of carbon-neutral biofuels. There is still limited
Zhenmin Zhang, Dezhang Ren, Dian Zhang, Tiantian Hu, Congyuan Zeng, Nengneng Xu, Zhibao Huo, Jinli Qiao   +7 more
doaj   +1 more source

Evidence for an Iminium Cation Intermediate and its Non‐Oxidative Decarboxylation in a Cerium (IV)‐Mediated Oxidative Decarboxylation. Preliminary communication

, 1980
Evidence is provided for the occurrence of a non‐oxidative decarboxylation in an iminium cation intermediate which is produced in an oxidative decarboxylation induced by cerium (IV). Copyright © 1980 Verlag GmbH & Co.
Samir B. Hanna, Hanna, Samir B., Marilyn E. Moehlenkamp, Moehlenkamp, Marilyn E.   +3 more
core   +1 more source

Electrochemical Oxidative Dihydrobenzofuran Synthesis

ChemElectroChem
We herein report the synthesis of dihydrobenzofurans via an oxidative cycloetherification process under electrochemical conditions. By starting from phenol‐based ketones or β‐ketolactones, it is possible to access the dihydrobenzofuran targets under ...
David Pollheimer, Maximilian Radetzky, Mario Waser   +2 more
doaj   +1 more source

Catalytical decarboxylation of lignites

, 2006
The catalytic effect of the transition metal ions Cr2+, Mn2+, Fe2+, Co2+, Cu2+ and Zn2+ on the decarboxylation of Beypazari lignite was investigated, in terms of the change in calorific values of the decarboxylated lignite samples obtained after the ...
Kuru, Erkin, Dumanlı, Ahu Gümrah, Saygı, Ceren, Okyay, Firuze, Yürüm, Yuda, Nergiz, Zeynep Saide, Ok, Ekin, Çelik, Batuhan   +7 more
core  

Late‐Stage Functionalization of Peptides on the Solid Phase

Angewandte Chemie International Edition, EarlyView.
Peptide modifications are essential to control pharmacodynamic and pharmacokinetic properties of peptide drugs. Consequently, strategies that allow for efficient and rapid incorporation of non‐canonical modifications into peptides in parallel formats are highly sought after.
Marius Werner, Truc Lam Pham, Franziska Thomas   +2 more
wiley   +1 more source

Reversibility and Diffusion in Mandelythiamin Decarboxylation. Searching Dynamical Effects in Decarboxylation Reactions

, 2016
Decarboxylation of mandelylthiamin in aqueous solution is analyzed by means of quantum mechanics/molecular mechanics simulations including solvent effects.
Maite Roca (1678066), Iñaki Tuñón (1303956), Juan-Luis Pascual-Ahuir (2070247)   +2 more
core   +1 more source

The Correlation between Amino Acids and Biogenic Amines in Wines without Added Sulfur Dioxide

Fermentation
In classical methods of wine production, amino acids play a critical role, as they are fundamental to all types of fermentation. Beyond their consumption in fermentative processes, amino acids undergo several transformations, such as decarboxylation ...
Sorin Macoviciuc, Marius Niculaua, Constantin-Bogdan Nechita, Bogdan-Ionel Cioroiu, Valeriu V. Cotea   +4 more
doaj   +1 more source