Results 21 to 30 of about 18,349 (284)

Photocatalyzed Decarboxylative Thiolation of Carboxylic Acids Enabled by Fluorinated Disulfide [PDF]

open access: yes, 2022
Thiolation of carboxylic acids using a disulfide reagent having tetrafluoropyridinyl groups is described. The light-mediated process is performed using an acridine-type photocatalyst.
Vitalij V. Levin (1414048)   +3 more
core   +1 more source

Synthesis, structural characterization and antimicrobial evaluation of some novel piperidin-4-one oxime esters [PDF]

open access: yesJournal 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
doaj   +1 more source

Cocrystals Based on 4,4’-bipyridine: Influence of Crystal Packing on Melting Point

open access: yesCrystals, 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
doaj   +1 more source

Multifunctional Aromatic Carboxylic Acids as Versatile Building Blocks for Hydrothermal Design of Coordination Polymers

open access: yesCrystals, 2018
Selected recent examples of coordination polymers (CPs) or metal-organic frameworks (MOFs) constructed from different multifunctional carboxylic acids with phenyl-pyridine or biphenyl cores have been discussed.
Jinzhong Gu   +5 more
doaj   +1 more source

A facile synthesis and characterization of some novel benzimidazole derivatives

open access: yesResults 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

Biotransformation of fluorophenyl pyridine carboxylic acids by the model fungus Cunninghamella elegans [PDF]

open access: yes, 2016
1. Fluorine plays a key role in the design of new drugs and recent FDA approvals included two fluorinated drugs, tedizolid phosphate and vorapaxar, both of which contain the fluorophenyl pyridyl moiety. 2.
Sandford, Graham   +5 more
core   +4 more sources

Weak Interactions in Cocrystals of Isoniazid with Glycolic and Mandelic Acids

open access: yesCrystals, 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
doaj   +1 more source

Synthesis of New trans-2-Benzyl-3-(furan-2-yl)-4-substituted-1,2,3,4-tetrahydroisoquinolinones

open access: yesMolecules, 2006
The reaction of homophthalic anhydride and N-(furan-2-yl-methylidene)- benzylamine in different solvents and varying temperatures was studied in detail. Mixtures of the expected trans- and cis-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acids trans-5 and
Mariana D. Palamareva   +2 more
doaj   +1 more source

Investigation of Pyridine Carboxylic Acids in CM2 Carbonaceous Chondrites: Potential Precursor Molecules for Ancient Coenzymes [PDF]

open access: yes, 2014
The distribution and abundances of pyridine carboxylic acids (including nicotinic acid) in eight CM2 carbonaceous chondrites (ALH 85013, DOM 03183, DOM 08003, EET 96016, LAP 02333, LAP 02336, LEW 85311, and WIS 91600) were investigated by liquid ...
House, Christopher H.   +4 more
core   +4 more sources

The comparative study of linear solvatation energy relationship for the reactivity of pyridine carboxylic acids with diazodiphenylmethane in protic and aprotic solvents [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
Protic and aprotic solvent effects on the reactivity of picolinic, nicotinic and isonicotinic acid, as well as of some substituted nicotinic acids with diazodiphenylmethane (DDM) were investigated.
Drmanić Saša Ž.   +3 more
doaj   +1 more source

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