Results 101 to 110 of about 41,455 (313)

Piano‐Stool Rhodium(V) and Rhodium(IV) Intermediates in C─H Functionalization and B─H Functionalization: Mechanistic Insights and Emerging Reactivity

Asian Journal of Organic Chemistry, EarlyView.
High‐valent Rh(IV) and Rh(V) species have been invoked to rationalize enhanced catalytic reactivity. This review examines evidence for both, emphasizing reactions proceeding through the Rh(III)/Rh(IV)/Rh(II) cycle. While Rh(V) intermediates are computationally supported, experimental evidence is limited; Rh(IV) species are supported by both theory and ...
Yujie Cao, Arnav Kacker, Kevin G. M. Kou
wiley   +1 more source

Trapping the substrate radical of heme synthase AhbD

Frontiers in Chemistry
The heme synthase AhbD catalyzes the last step of the siroheme-dependent heme biosynthesis pathway, which is operative in archaea and sulfate-reducing bacteria.
Lorenz Heidinger, Isabelle Fix, Thorsten Friedrich, Gunhild Layer   +3 more
doaj   +1 more source

Synthetic Approaches to a Challenging and Unusual Structure—An Amino-Pyrrolidine Guanine Core

Molecules, 2020
The synthesis of an unreported 2-aminopyrrolidine-1-carboxamidine unit is here described for the first time. This unusual and promising structure was attained through the oxidative decarboxylation of amino acids using the pair of reagents, silver(I ...
Rafael Rippel, Luís Pinheiro, Mónica Lopes, Ana Lourenço, Luísa M. Ferreira, Paula S. Branco   +5 more
doaj   +1 more source

Use of superheated liquids for the extraction of non-volatile compounds from wood: HPLC studies [PDF]

, 2004
A study of the extraction of oak wood compounds using superheated water-ethanol mixtures ranging from 10 to 60% ethanol is reported. Identification and characterization of the extracted compounds have been made by high performance liquid chromatography ...
Chatonnet, Cutzach, Cutzach, Delgado, Giménez Martı́nez, González-Rodrı́guez, J González-Rodrı́guez, M.D Luque de Castro, P Pérez-Juan, Sarni, Scalbert, Tricard, Viriot   +12 more
core   +1 more source

Lin28A induces energetic switching to glycolytic metabolism in human embryonic kidney cells [PDF]

, 2016
Background: Loss of a cell’s capacity to generate sufficient energy for cellular functions is a key hallmark of the ageing process and ultimately leads to a variety of important age-related pathologies such as cancer, Parkinson’s disease and ...
Docherty, Craig K., Mercer, John R., Salt, Ian P.   +2 more
core   +3 more sources

Posttranscriptional Upregulation of IDH1 by HuR Establishes a Powerful Survival Phenotype in Pancreatic Cancer Cells. [PDF]

, 2017
Cancer aggressiveness may result from the selective pressure of a harsh nutrient-deprived microenvironment. Here we illustrate how such conditions promote chemotherapy resistance in pancreatic ductal adenocarcinoma (PDAC). Glucose or glutamine withdrawal
Blanco, Fernando F, Brody, Jonathan R., Chand, Saswati N., Cozzitorto, Joseph A., Dukleska, Katerina, Jiang, Wei, Jimbo, Masaya, Lal, Shruti, Londin, Eric R., Mambelli-Lisboa, Nicole C., Metallo, Christian M., Moffat, Cynthia, Nevler, Avinoam, Parker, Seth J., Seifert, Erin L., Vaziri-Gohar, Ali, Winter, Jordan M., Yeo, Charles J., Zarei, Mahsa   +18 more
core   +1 more source

Decarboxylation of 2-keto fatty acids by brain

Journal of Lipid Research, 1966
An enzyme system consisting of washed acetone powder of pig brain, adenosine triphosphate, nicotinamide adenine dinucleotide, magnesium, fumaric acid, and ascorbic acid was found to catalyze the oxidative decarboxylation of 2-ketostearic acid.
W. Ewart Davies, Amiya K. Hajra, Surendra S. Parmar, Norman S. Radin, James F. Mead   +4 more
doaj  

Iodine-mediated one-pot intramolecular decarboxylation domino reaction for accessing functionalised 2-(1,3,4-oxadiazol-2-yl)anilines with carbonic anhydrase inhibitory action

Journal of Enzyme Inhibition and Medicinal Chemistry, 2018
A practical and transition metal-free one-pot domino synthesis of diversified (1,3,4-oxadiazol-2-yl)anilines has been developed employing isatins and hydrazides as the starting materials, in the presence of molecular iodine. The prominent feature of this
Srinivas Angapelly, P. V. Sri Ramya, Rohini Sodhi, Andrea Angeli, Krishnan Rangan, Narayana Nagesh, Claudiu T. Supuran, Mohammed Arifuddin   +7 more
doaj   +1 more source

Coordinative Ring‐Opening Polymerization of Limonene Carbamate Toward Phosgene‐ and Isocyanate‐Free Polyurethane

Angewandte Chemie International Edition, EarlyView.
This study presents a phosgene‐ and isocyanate‐free route to terpene‐based polyurethanes using (R)‐limonene as a bio‐based feedstock. Through ring‐opening polymerization (ROP), limonene carbamate (LU) is converted into polyurethane (PLU) with high efficiency.
Jonas Futter, Leon F. Richter, Stefanie Hörl, Moritz Kränzlein, Bernhard Rieger   +4 more
wiley   +1 more source

The role of remote flavin adenine dinucleotide pieces in the oxidative decarboxylation catalyzed by salicylate hydroxylase. [PDF]

Bioorg Chem, 2022
Pereira MS, de Araújo SS, Nagem RAP, Richard JP, Brandão TAS.   +4 more
europepmc   +1 more source