Results 41 to 50 of about 153,294 (307)

Visible Light–Induced Decarboxylative Radical Addition of Heteroaromatic Carboxylic Acids to Alkenes at Room Temperature in Two‐Molecule Photoredox System

ChemistryOpen
The photoinduced decarboxylative radical addition of aryl carboxylic acids, including heteroaromatic carboxylic acids, to electron‐deficient alkenes is achieved in a two‐molecule photoredox system using a combination of biphenyl (BP) and 9,10 ...
Daisuke Suzuki, Ryoga Hashimoto, Toshiki Furutani, Mugen Yamawaki, Hirotsugu Suzuki, Yasuharu Yoshimi   +5 more
doaj   +1 more source

Titanium Tetrachloride-Assisted Direct Esterification of Carboxylic Acids

Molecules
Ester compounds, widely found in pharmaceutical and natural products, play a crucial role in organic synthesis, prompting the development of numerous methods for their synthesis. An important chemical approach in synthesizing esters from carboxylic acids
Palmira Alessia Cavallaro, Marzia De Santo, Marianna Greco, Rocco Marinaro, Emilia Lucia Belsito, Angelo Liguori, Antonella Leggio   +6 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Organocatalytic Michael addition–lactonisation of carboxylic acids using α,β-unsaturated trichloromethyl ketones as α,β-unsaturated ester equivalents

, 2014
The authors thank the Royal Society for a University Research Fellowship (ADS), The Carnegie Trust for the Universities of Scotland (LCM), Syngenta/EPSRC (Case award to DGS), GSK/EPSRC (CASE award to SRS), the EU (IEF for CS), and the European Research ...
Morrill, L.C., D'Hollander, A.C.A., O'Riordan, Timothy J. C., O'Riordan, T.J.C., Taylor, James E., Shapland, Peter, Smith, S.R., Morrill, Louis, Shapland, P., Stark, Daniel G., Smith, Siobhan R., Simal Fernandez, Carmen, D'Hollander, Agathe C. A., Stark, D.G., Smith, A.D., Taylor, J.E., Squires, James A., Squires, J.A., Smith, Andrew D., Simal, Carmen   +19 more
core   +1 more source

Visible-light-induced aerobic photocatalytic oxidation of alcohols to carboxylic acids over practical NaBr/NH2-MIL-125(Ti) catalyst system

, 2022
Carboxylic acids, as a fundamental raw material, are widely used in the production of fine chemicals. Herein, we developed the oxidation of alcohols to carboxylic acids under visible light irradiation at room temperature by devising a duplex NH2-MIL-125 ...
Xiuzhi, Wei, Jianguo, liu, Longlong, Ma
core   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Liquid-Chromatographic Methods for Carboxylic Acids in Biological Samples

Molecules, 2020
Carboxyl-bearing low-molecular-weight compounds such as keto acids, fatty acids, and other organic acids are involved in a myriad of metabolic pathways owing to their high polarity and solubility in biological fluids. Various disease areas such as cancer,
Takuya Fujiwara, Ryoto Inoue, Takuma Ohtawa, Makoto Tsunoda   +3 more
doaj   +1 more source

Building Chemical Intuition About Physicochemical Properties of C8-Per-/Poly-fluoroalkyl Carboxylic Acids Through Computational Means

, 2023
We have predicted acid dissociation constants (pKa), octanol-water partition coefficients (KOW), and DPMC lipid membrane-water partition coefficients (Klipid-w) of 150 different 8-carbon containing poly-/per-fluoroalkyl carboxylic acids (C8-PFCAs ...
Michael, Larock, Zackary, Falls, Scott, Simpson, Ekin, Atilla-Gokcumen, Diana, Aga, Jonathan, Antle, Carla, Ng   +6 more
core   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Impact of Dispersing on the Production and Extraction of Bio-Based Basic Chemicals from Biogenic Secondary Waste

Environmental and Climate Technologies
Biogenic waste from waste treatment plants, secondary waste, can be used to produce bio-based carboxylic acids, conventionally produced by chemical synthesis from petroleum-based feedstocks or by synthesis from natural oils.
Vogt Kyra Atessa, Steinberg Iris
doaj   +1 more source