Results 31 to 40 of about 103,421 (277)

Tandem Triphosgene-Assisted Metal-Free One-pot Preparation of Nitriles and Amides from Aldehydes and Ketones [PDF]

open access: yes, 2021
Here we report a facile and efficient triphosgene-assisted one-pot conversion of aldehydes/ketones into nitriles/amides. The triphosgene, a kind of phosgene alternative, containing both ester linkage and chloromethyl units, easily reacts with oximes for ...
Jianguo, liu, Xiu-Zhi, Wei, Longlong, Ma
core   +1 more source

An unprecedented palladium-arsenic catalytic cycle for nitriles hydration

open access: yesFrontiers in Chemistry, 2023
An unprecedented palladium/arsenic-based catalytic cycle for the hydration of nitriles to the corresponding amides is here described. It occurs in exceptionally mild conditions such as neutral pH and moderate temperature (60°C).
Damiano Cirri   +2 more
doaj   +1 more source

The Impact of the Absence of Aliphatic Glucosinolates on Insect Herbivory in Arabidopsis [PDF]

open access: yes, 2008
Aliphatic glucosinolates are compounds which occur in high concentrations in Arabidopsis thaliana and other Brassicaceae species. They are important for the resistance of the plant to pest insects.
Verbocht, Hans   +85 more
core   +3 more sources

The crystal structure of an aliphatic amidase from Geobacillus pallidus RAPc8 [PDF]

open access: yes, 2007
Includes bibliographical references (leaves 123-136).Amidases are a group of carbon-nitrogen hydrolysing enzymes that catalyze the conversion of amides to corresponding carboxylic acids and ammonia.
Kimani, Serah
core   +1 more source

Thermal oxidation kinetics of additive free polyamide 6-6 [PDF]

open access: yes, 2013
Thermal aging of an additive free PA 6-6 has been elucidated at 90, 100, 120, 140, 150 and 160 C in airventiled ovens by Fourier transform infrared spectrophotometry, viscosimetry in molten state and uniaxial tensile testing.
BEN HASSINE, Mouna   +3 more
core   +1 more source

Synthesis, Docking Studies and Acetylcholinesterase Inhibition of Open-Chain Carbohydrate Amides

open access: yesMedical Sciences Forum, 2022
Alzheimer’s disease (AD) is the most common age-related cause of dementia among elderly people. AD is a severe neurodegenerative disorder characterized by progressive memory and cognition loss that leads to disability and inevitably to death and is ...
Maria Isabel Ismael   +6 more
doaj   +1 more source

Scientific Opinion on Flavouring Group Evaluation 94, Revision 1 (FGE.94Rev1): Consideration of aliphatic amines and amides evaluated in an addendum to the group of aliphatic and aromatic amines and amides evaluated by the JECFA (68th meeting)

open access: yesEFSA Journal, 2012
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to consider evaluations of flavouring substances assessed since 2000 by the Joint FAO/WHO Expert Committee on Food Additives
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

Structure Elucidation of Calyxoside B, a Bipolar Sphingolipid from a Marine Sponge Cladocroce sp. through the Use of Beckmann Rearrangement

open access: yesMarine Drugs, 2021
Marine sponges are an excellent source of biologically active secondary metabolites. We focus on deep-sea sponges for our discovery study. A marine sponge Cladocroce sp. exhibited cytotoxic activity in the bioactivity screening.
Kenji Sugawara   +7 more
doaj   +1 more source

Mechanistic Aspects of the Electrochemical Oxidation of Aliphatic Amines and Aniline Derivatives

open access: yesMolecules, 2023
The electrochemical oxidation of amines is an essential alternative to the conventional chemical transformation that provides critical routes for synthesising and modifying a wide range of chemically useful molecules, including pharmaceuticals and ...
Ashwin K. V. Mruthunjaya   +1 more
doaj   +1 more source

Effect of Added Aliphatic Acids at Amidation of Aliphatic Acid Methylates

open access: yesJournal of Japan Oil Chemists' Society, 1962
It is reported that the ammonolsis rate of aliphatic acid esters is very slow than that of aliphatic acids. Authors carried out experiments on amidation of methylated aliphatic acid in the flow reactor system, semi-batch reactor system and in the batch reactor system.
NITANAI, Seimei   +2 more
openaire   +2 more sources

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