Chemistry of Heterocyclic Compounds, 1966 A number of amides and hydrazides of 4-phenyl-2,5-pyridine dicarboxylic acids are synthesized. © 1966 The Faraday Press, Inc.
Prostakov N.S. +3 more
openaire +3 more sources
Synthesis, structural characterization and antimicrobial evaluation of some novel piperidin-4-one oxime esters [PDF]
Journal of the Serbian Chemical Society, 2015 Fifteen novel biologically active piperidin-4-one oxime esters (8-22) have been synthesized with good yields. These compounds were prepared from in-situ activated carboxylic acids using POCl3 and pyridine with piperidin-4- one oximes.
Krishnan Gokula K. +2 more
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Cocrystals Based on 4,4’-bipyridine: Influence of Crystal Packing on Melting Point
Crystals, 2021 The reactions of piperonylic acid (HPip) and cinnamic acid (HCinn) with 4,4’-bipyridine (4,4’-bipy) have been assayed using the same synthetic methodology, yielding two binary cocrystals with different acid:4,4’-bipy molar ratios, (HPip)(4,4’-bipy) (1 ...
Daniel Ejarque +3 more
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Molecules, 2005 Cinnamic acids have been prepared in moderate to high yields by a new direct synthesis using aromatic aldehydes and aliphatic carboxylic acids, in the presence of boron tribromide as reagent, 4-dimethylaminopyridine (4-DMAP) and pyridine (Py) as bases ...
M. Onciu, F. Tanasa, C. Chiriac
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Synthesis of α-hydroxy-β,β-difluoro-γ-ketoesters via [3,3]sigmatropic rearrangements [PDF]
, 2000 Readily available γ,γ-difluorinated allylic alcohols obtained from trifluoroethanol were esterified efficiently. Exposure to strong base (LDA) afforded the ester enolates, in which chelation both controlled configuration and stabilised against ...
Broadhurst, Michael +3 more
core +1 more source
A facile synthesis and characterization of some novel benzimidazole derivatives
Results in Chemistry, 2023 We successfully synthesized a series of novel benzimidazole derivatives with high yields in our current research study. The synthesis procedure involved condensing Ethyl 3-[[3-amino-4-(treiethylamino) benzoyl] (pyridine-5-yl) amino]-propanoate with ...
Rahul B. Shinde +7 more
doaj +1 more source
Re-evaluating the list of high-production chemicals predicted to become Arctic contaminants [PDF]
, 2010 The large number of historical and current organic chemicals in commerce, and the ability of these compounds to make their way from industrial to remote regions, has resulted in concerted efforts to predict which chemicals have the capacity to migrate ...
Kaya Forest, Sierra Rayne
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Formation of amides: one-pot condensation of carboxylic acids and amines mediated by TiCl4
Chemistry Central Journal, 2017 A general procedure for the synthesis of amides via the direct condensation of carboxylic acids and amines in the presence of TiCl4 is reported. The amidation reaction was performed in pyridine at 85 °C with a wide range of substrates providing the ...
Antonella Leggio +5 more
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Studies on the sulfation of cellulose α-lipoate and ability of the sulfated product to stabilize colloidal suspensions of gold nanoparticles [PDF]
, 2015 © 2015 Elsevier Ltd. A versatile method for the synthesis of cellulose α-lipoate with a low degree of substitution (DS) has been developed using N,N-dimethylacetamide (DMA)/LiCl as a solvent and N,N′-carbonyldiimidazole (CDI) as an esterification reagent.
Cheng, Fei +4 more
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Weak Interactions in Cocrystals of Isoniazid with Glycolic and Mandelic Acids
Crystals, 2021 This work deals with the preparation of pyridine-3-carbohydrazide (isoniazid, inh) cocrystals with two α-hydroxycarboxylic acids. The interaction of glycolic acid (H2ga) or d,l-mandelic acid (H2ma) resulted in the formation of cocrystals or salts of ...
Raquel Álvarez-Vidaurre +7 more
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