Results 101 to 110 of about 81,314 (317)

Hypervalent iodine(III)-mediated decarboxylative acetoxylation at tertiary and benzylic carbon centers

Beilstein Journal of Organic Chemistry, 2018
The decarboxylative acetoxylation of carboxylic acids using a combination of PhI(OAc)2 and I2 in a CH2Cl2/AcOH mixed solvent is reported. The reaction was successfully applied to two types of carboxylic acids containing an α-quaternary and a benzylic ...
Kensuke Kiyokawa, Daichi Okumatsu, Satoshi Minakata   +2 more
doaj   +1 more source

Catalytic Decarboxylation of Fatty Acids to Aviation Fuels over Nickel Supported on Activated Carbon

Scientific Reports, 2016
Decarboxylation of fatty acids over non-noble metal catalysts without added hydrogen was studied. Ni/C catalysts were prepared and exhibited excellent activity and maintenance for decarboxylation.
Jianghua Wu, Juanjuan Shi, Jie Fu, Jamie A. Leidl, Z. Hou, Xiuyang Lu   +5 more
semanticscholar   +1 more source

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

, 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

Mechanism of Decarboxylation of Pyruvic Acid in the Presence of Hydrogen Peroxide

Journal of Pharmacy and Science, 2016
The purpose of this work was to probe the rate and mechanism of rapid decarboxylation of pyruvic acid in the presence of hydrogen peroxide (H2O2) to acetic acid and carbon dioxide over the pH range 2 – 9 at 25°C, utilizing UV spectrophotometry, high ...
A. Lopalco, Gautam Dalwadi, S. Niu, R. Schowen, J. Douglas, V. Stella   +5 more
semanticscholar   +1 more source

Structure and mechanism of acetolactate decarboxylase [PDF]

, 2013
Acetolactate decarboxylase catalyzes the conversion of both enantiomers of acetolactate to the (R)-enantiomer of acetoin, via a mechanism that has been shown to involve a prior rearrangement of the non-natural (R)-enantiomer substrate to the natural (S ...
Victoria A. Marlow, Martin Wills, Wills, Martin, Dean Rea, Rea, Dean, Marlow, Victoria A., Vilmos Fülöp, Najmudin, Shabir, Fülöp, Vilmos, Shabir Najmudin   +9 more
core   +1 more source

Editorial: Aminobiogenic potential of fermented food microbiota

Frontiers in Microbiology, 2023
Małgorzata Karwowska, Joanna Stadnik, Milena Brasca   +2 more
doaj   +1 more source

Switchable selectivity in Pd-catalyzed [3 + 2] annulations of γ-oxy-2-cycloalkenones with 3-oxoglutarates: C–C/C–C vs C–C/O–C bond formation

Beilstein Journal of Organic Chemistry, 2019
Two complementary [3 + 2] annulation protocols between 3-oxoglutarates and cyclic γ-oxy-2-cycloalkenones, simply differing on the reaction temperature, are disclosed.
Yang Liu, Julie Oble, Giovanni Poli
doaj   +1 more source

Reversibility and Diffusion in Mandelythiamin Decarboxylation. Searching Dynamical Effects in Decarboxylation Reactions [PDF]

, 2012
Decarboxylation of mandelylthiamin in aqueous solution is analyzed by means of quantum mechanics/molecular mechanics simulations including solvent effects.
Tuñón, Iñaki, Roca Moliner, María Teresa, Pascual Ahuir, Juan Luis, Roca, Maite   +3 more
core   +1 more source

New cofactor supports α,β-unsaturated acid decarboxylation via 1,3-dipolar cycloaddition

Nature, 2015
The bacterial ubiD and ubiX or the homologous fungal fdc1 and pad1 genes have been implicated in the non-oxidative reversible decarboxylation of aromatic substrates, and play a pivotal role in bacterial ubiquinone (also known as coenzyme Q) biosynthesis ...
Karl Payne, M. White, K. Fisher, B. Khara, S. S. Bailey, David A. Parker, N. Rattray, D. Trivedi, R. Goodacre, R. Beveridge, P. Barran, S. E. Rigby, N. Scrutton, Sam Hay, D. Leys   +14 more
semanticscholar   +1 more source