Results 81 to 90 of about 2,718,627 (117)

Fatty acid, acid esters, esters and carboxylic acid derivatives in four kinds of materials.

open access: yes, 2014
– Represents compounds not detected.Fatty acid, acid esters, esters and carboxylic acid derivatives in four kinds of materials.
Haibo Jia (151612)   +6 more
core   +1 more source

Effect of a Carboxylic Acid on Rheological Properties of a High Alumina Cement Mortar [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2013
In this work, we studied the effect of carboxylic acid on the rheological properties of a high-alumina cement mortar (CH45) produced by the Algerian firm REFRACTAL.The investigated properties are setting time, water consumption, electrical conductivity ...
Farouk Benali   +4 more
doaj  

Structural characteristic of pyridine carboxylic acid adducts with squaric acid

open access: yes
In this work, squaric acid (3,4-dihydroxycyclobut-3-ene-1,2-dione) was used as a coformer to pyridine carboxylic acid cocrystallization. All of the multicomponent systems mentioned were obtained by cocrystallization from solution via slow solvent ...
Gołdyn, Mateusz
core   +1 more source

One Carbon at a Time: Unlocking Iterative Carboxylic Acid Homologation [PDF]

open access: yes
The development of a direct and iterative protocol for carboxylic acid homologation has constituted a long-standing challenge in synthesis. We recently disclosed an efficient and practical strategy for the homologation of unmodified carboxylic acids ...
Silvi, Mattia, Wheatley, Emilie
core   +1 more source

pH Sensitive Anticancer Prodrug: Amide of Kemp's Acid [PDF]

open access: yes, 2009
Solid tumours are characterised by lower extracellular pH (as low as 5.8 pH) compared to normal healthy cellular pH (actively regulated at pH 7.3). This difference may be exploited with an acid-sensitive anti-tumour prodrug which releases a cytotoxin ...
Brooks, Robert Turongo
core  

5-(Methoxycarbonyl)thiophene-2-carboxylic acid

open access: yes, 2010
In the title compound, C7H6O4S, a monoester derivative of 2,5-thiophenedicarboxylic acid, the carboxylic acid and the carboxylic acid ester groups are approximately coplanar with thiophene ring, making a dihedral angle of 3.1 (4) and 3.6& ...
Guang-Ming Xia   +4 more
core   +1 more source

Chiral carboxylic acid ligands derived from camphoric acid

open access: yes, 2016
Versatile and convenient preparations of chiral carboxylic acid ligands, derived from camphoric acid, are described, either by esterification of camphoric dichloride or by a regioselective opening of the corresponding anhydride by a variety of alcohols ...

core   +1 more source

3-Ethoxycarbonyl-1,4-benzodioxin-2-carboxylic Acid [PDF]

open access: yes
3-Ethoxycarbonyl-1,4-benzodioxin-2-carboxylic acid, a novel 2,3-disubstituted benzodioxin, was prepared from readily available 1,4-benzodioxin-2-carboxylic acid by lithiation at C(3) and a reaction with the electrophile ethyl chloroformate.
M. Pallavicini   +4 more
core   +1 more source

Design, synthesis, and molecular docking of novel pyrimidine-hydrazone hybrids bearing sugar moieties as potential antioxidant agents

open access: yesIndonesian Journal of Innovation and Applied Sciences
A novel series of 5-bromo-2-(methylthio)pyrimidine-4-carboxylic acid derivatives conjugated with monosaccharides was synthesized and evaluated in vitro for their antimicrobial and antioxidant activities.
Haider M. Hassan   +2 more
doaj   +1 more source

Synthesis and antimicrobial activity of some imidazo-[1,2-a]pyridine-2-carboxylic acid arylidenehydrazide derivatives

open access: yes, 2001
PubMed: 11822228Imidazo[1,2-a]pyridine-2-carboxylic acid, ethyl esters were reacted with hydrazine hydrate to furnish imidazo[1,2-a]pyridine-2-carboxylic acid hydrazide. The hydrazides formed were treated with various aldehydes to obtain 28 imidazo[1,2-a]
Turan, Gülhan   +2 more
core  

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