Relevant bibliographies by topics / Carboxy Pyridine

Academic literature on the topic 'Carboxy Pyridine'

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Published: 10 March 2023
Last updated: 11 March 2023

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Journal articles on the topic "Carboxy Pyridine"

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Smith, Graham, Urs D. Wermuth, and Jonathan M. White. "Zero-, one- and two-dimensional hydrogen-bonded structures in the 1:1 proton-transfer compounds of 4,5-dichlorophthalic acid with the monocyclic heteroaromatic Lewis bases 2-aminopyrimidine, nicotinamide and isonicotinamide." Acta Crystallographica Section C Crystal Structure Communications 65, no. 3 (February 21, 2009): o103—o107. http://dx.doi.org/10.1107/s0108270109004405.

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The structures of the anhydrous 1:1 proton-transfer compounds of 4,5-dichlorophthalic acid (DCPA) with the monocyclic heteroaromatic Lewis bases 2-aminopyrimidine, 3-(aminocarbonyl)pyridine (nicotinamide) and 4-(aminocarbonyl)pyridine (isonicotinamide), namely 2-aminopyrimidinium 2-carboxy-4,5-dichlorobenzoate, C4H6N3+·C8H3Cl2O4−, (I), 3-(aminocarbonyl)pyridinium 2-carboxy-4,5-dichlorobenzoate, C6H7N2O+·C8H3Cl2O4−, (II), and the unusual salt adduct 4-(aminocarbonyl)pyridinium 2-carboxy-4,5-dichlorobenzoate–methyl 2-carboxy-4,5-dichlorobenzoate (1/1), C6H7N2O+·C8H3Cl2O4−·C9H6Cl2O4, (III), have been determined at 130 K. Compound (I) forms discrete centrosymmetric hydrogen-bonded cyclic bis(cation–anion) units having bothR22(8) andR12(4) N—H...O interactions. In (II), the primary N—H...O-linked cation–anion units are extended into a two-dimensional sheet structureviaamide–carboxyl and amide–carbonyl N—H...O interactions. The structure of (III) reveals the presence of an unusual and unexpected self-synthesized methyl monoester of the acid as an adduct molecule, giving one-dimensional hydrogen-bonded chains. In all three structures, the hydrogen phthalate anions are essentially planar with short intramolecular carboxyl–carboxylate O—H...O hydrogen bonds [O...O = 2.393 (8)–2.410 (2) Å]. This work provides examples of low-dimensional 1:1 hydrogen-bonded DCPA structure types, and includes the first example of a discrete cyclic `heterotetramer.' This low dimensionality in the structures of the 1:1 aromatic Lewis base salts of the parent acid is generally associated with the planar DCPA anion species.
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Guo, Lei, Jia-Qun Li, Yu-Ting Xie, Chu-Qin Lu, and Jian-Zhong Wu. "A one-dimensional lead(II) coordination polymer with terminal and bridging 5-carboxy-2-(pyridin-3-yl)-1H-imidazole-4-carboxylate ligands." Acta Crystallographica Section C Structural Chemistry 70, no. 5 (April 8, 2014): 428–31. http://dx.doi.org/10.1107/s2053229614006883.

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In the coordination polymer catena-poly[[[diaqua[5-carboxy-2-(pyridin-3-yl)-1H-imidazole-4-carboxylato-κ2 N 3,O 4]lead(II)]-μ-5-carboxy-2-(pyridin-3-yl)-1H-imidazole-4-carboxylato-κ3 N 3,O 4:N 2] dihydrate], {[Pb(C10H6N3O4)(H2O)2]·2H2O} n , the two 5-carboxy-2-(pyridin-3-yl)-1H-imidazole-4-carboxylate ligands have different coordination modes, one being terminal and the other bridging. The bridging ligand links PbII cations into one-dimensional coordination polymer chains. The structure is also stabilized by intra- and interchain π–π stacking interactions between the pyridine rings, resulting in the formation of a two-dimensional network. Extensive hydrogen-bonding interactions lead to the formation of a three-dimensional supramolecular network.
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Wang, Yi, and Helen Stoeckli-Evans. "The inner-salt zwitterion, the dihydrochloride dihydrate and the dimethyl sulfoxide disolvate of 3,6-bis(pyridin-2-yl)pyrazine-2,5-dicarboxylic acid." Acta Crystallographica Section C Crystal Structure Communications 68, no. 11 (October 1, 2012): o431—o435. http://dx.doi.org/10.1107/s0108270112039534.

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In the inner-salt zwitterion of 3,6-bis(pyridin-2-yl)pyrazine-2,5-dicarboxylic acid, (I), namely 5-carboxy-3-(pyridin-1-ium-2-yl)-6-(pyridin-2-yl)pyrazine-2-carboxylate, [C16H10N4O4, (Ia)], the pyrazine ring has a twist–boat conformation. The opposing pyridine and pyridinium rings are almost perpendicular to one another, with a dihedral angle of 80.24 (18)°, and are inclined to the pyrazine mean plane by 36.83 (17) and 43.74 (17)°, respectively. The carboxy and carboxylate groups are inclined to the mean plane of the pyrazine ring by 43.60 (17) and 45.46 (17)°, respectively. In the crystal structure, the molecules are linkedviaN—H...O and O—H...O hydrogen bonds, leading to the formation of double-stranded chains propagating in the [010] direction. On treating (Ia) with aqueous 1 MHCl, the diprotonated dihydrate form 2,2′-(3,6-dicarboxypyrazine-2,5-diyl)bis(pyridin-1-ium) dichloride dihydrate [C16H12N4O42+·2Cl−·2H2O, (Ib)] was obtained. The cation lies about an inversion centre. The pyridinium rings and carboxy groups are inclined to the planar pyrazine ring by 55.53 (9) and 19.8 (2)°, respectively. In the crystal structure, the molecules are involved in N—H...Cl, O—H...Owaterand Owater—H...Cl hydrogen bonds, leading to the formation of chains propagating in the [010] direction. When (Ia) was recrystallized from dimethyl sulfoxide (DMSO), the DMSO disolvate 3,6-bis(pyridin-2-yl)pyrazine-2,5-dicarboxylic acid dimethyl sulfoxide disolvate [C16H10N4O4·2C2H6OS, (Ic)] of (I) was obtained. Here, the molecule of (I) lies about an inversion centre and the pyridine rings are inclined to the planar pyrazine ring by only 23.59 (12)°. However, the carboxy groups are inclined to the pyrazine ring by 69.0 (3)°. In the crystal structure, the carboxy groups are linked to the DMSO molecules by O—H...O hydrogen bonds. In all three crystal structures, the presence of nonclassical hydrogen bonds gives rise to the formation of three-dimensional supramolecular architectures.
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Martinez-Martin, Paloma, Josefina Perles, and Juan Carlos Rodriguez-Ubis. "Crystal Structure Dependence of the Energy Transfer from Tb(III) to Yb(III) in Metal–Organic Frameworks Based in Bispyrazolylpyridines." Crystals 10, no. 2 (January 27, 2020): 69. http://dx.doi.org/10.3390/cryst10020069.

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Luminescent mixed lanthanide metal−organic framwork (MOF) materials have been prepared from two polyheterocyclic diacid ligands, 2,6-bis(3-carboxy-1-pyrazolyl)pyridine and 2,6-bis(4-carboxy-1-pyrazolyl)pyridine. The crystal structures of the two organic molecules are presented together with the structures for the MOFs obtained by hydrothermal synthesis either with Yb(III) or mixed Tb(III)/Yb(III) ions. Different coordination architectures result from each ligand, revealing also important differences between the lanthanides. The mixed lanthanide metal−organic frameworks also present diverse luminescent behavior; in the case of 2,6-bis(4-carboxy-1-pyrazolyl)pyridine, where no coordinated water is present in the metal environment, Tb(III) and Yb(III) characteristic emission is observed by excitation of the bispyrazolylpyridine chromophore.
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Voronkov, Mikhail G., Ekaterina A. Grebneva, Aleksandr I. Albanov, Olga M. Trofimova, Tamara N. Aksamentova, Nina N. Chipanina, Anastasiya S. Soldatenko, and Nikolay F. Chernov. "The synthesis and structure of bis(pyridine-2-carboxy)difluoro(λ6)- and bis(pyridine-2-carboxy)fluorophenyl(λ5)siliconium." Arkivoc 2011, no. 8 (March 25, 2011): 163–71. http://dx.doi.org/10.3998/ark.5550190.0012.812.

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Delarge, J., and C. L. Lapiere. "Synthèses dans la Série des Acides Pyridine-Carboxy-Sulfoniques et Pyridine Disulfoniques." Bulletin des Sociétés Chimiques Belges 75, no. 5-6 (September 2, 2010): 321–27. http://dx.doi.org/10.1002/bscb.19660750507.

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Niiyama, Kenji, Toshiaki Mase, Hirobumi Takahashi, Akira Naya, Kasumi Katsuki, Toshio Nagase, Satoshi Ito, et al. "6-Carboxy-5,7-diarylcyclopenteno[1,2-b]pyridine derivatives." Bioorganic & Medicinal Chemistry 10, no. 8 (August 2002): 2461–70. http://dx.doi.org/10.1016/s0968-0896(02)00122-0.

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Amr, Abd El-Galil E., Ashraf M. Mohamed, and Alhussein A. Ibrahim. "Synthesis of Some New Chiral Tricyclic and Macrocyclic Pyridine Derivatives as Antimicrobial Agents." Zeitschrift für Naturforschung B 58, no. 9 (September 1, 2003): 861–68. http://dx.doi.org/10.1515/znb-2003-0908.

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A series of chiral macrocyclic pyridines has been prepared starting from N2,N2-(pyridine- 2,6-dicarbonyl)diamino acid hydrazides (2a-c) and N,N-bis-(1-carboxy-2-substituted)-2,6- diaminocarbonyl)pyridines (3a,b). The coupling of (2a-c) with 2,6-pyridine dicarbonyldichloride (4) gave the compounds (5a-c). Compounds 2a-c were coupled with 2,6-diacetylpyridine (6) to yield compounds (7a-c) and with heterocyclic aldehydes (8) or (10) to give the compounds (9a-c) or (11a-c). In addition, the hydrazides (2a-c) were reacted with diformylcalix[4]arene 12 to afford the macrocyclic calix[4]arene hydrazone derivatives (13a-c) in reasonable yields. Finally, reaction of diaminocalix-[4]arene derivatives (14a,b) with hydrazides 2a,b or acids (3a,b), using azide or mixed anhydride methods afforded macrocyclic calix[4]arene derivatives 15a,b and 16a,b, respectively. The structure assignments of the new compounds are based on chemical and spectroscopic evidence. The biological activity screening tests showed that many of the obtained compounds exhibit high antimicrobial activity comparable to ampicillin and chloramphenicol which are used as reference compounds.
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Hakimi, Mohammad, Fereshteh Sadeghi, Nourollah Feizi, Keyvan Moeini, Monika Kučeráková, and Michal Dušek. "Investigation of the effect of the N-oxidation process on the interaction of selected pyridine compounds with biomacromolecules: structural, spectral, theoretical and docking studies." Acta Crystallographica Section C Structural Chemistry 75, no. 6 (May 22, 2019): 750–57. http://dx.doi.org/10.1107/s2053229619006375.

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Two new N-oxide compounds, namely glycinium 2-carboxy-1-(λ1-oxidaneyl)-1λ4-pyridine-6-carboxylate–glycine–water (1/1/1), C2H6NO2 +·C7H4NO5 −·C2H5NO2·H2O or [(2,6-HpydcO)(HGLY)(GLY)(H2O)], 1, and methyl 6-carboxy-1-(λ1-oxidaneyl)-1λ4-pyridine-2-carboxylate, C8H7NO5 or 2,6-HMepydcO, 2, were prepared and identified by elemental analysis, FT–IR, Raman spectroscopy and single-crystal X-ray diffraction. The X-ray analysis of 1 revealed an ionic compound containing a 2,6-HpydcO− anion, a glycinium cation, a neutral glycine molecule and a water molecule. Compound 2 is a neutral compound with two independent units in its crystal structure. In addition to the hydrogen bonds, the crystal network is stabilized by π–π stacking interactions of the types pyridine–carboxylate and carboxylate–carboxylate. The thermodynamic stability and charge-distribution patterns for isolated molecules of 2,6-H2pydcO and 2,6-HMepydcO, and their two similar derivatives, pyridine-2,6-dicarboxylic acid (2,6-H2pydc) and dimethyl 1-(λ1-oxidaneyl)-1λ4-pyridine-2,6-dicarboxylate (2,6-Me2pydcO), were studied by density functional theory (DFT) and natural bond orbital (NBO) analysis, respectively. The ability of these compounds and their analogues to interact with nine selected biomacromolecules (BRAF kinase, CatB, DNA gyrase, HDAC7, rHA, RNR, TrxR, TS and Top II) was investigated using docking calculations.
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Smith, Graham, and Urs D. Wermuth. "4-(4-Nitrobenzyl)pyridinium 3-carboxy-4-hydroxybenzenesulfonate." Acta Crystallographica Section E Structure Reports Online 69, no. 2 (January 9, 2013): o206. http://dx.doi.org/10.1107/s1600536813000093.

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In the title salt, C12H11N2O2+·C7H5O6S−, the dihedral angle between the benzene and pyridine rings in the 4-(4-nitrobenzyl)pyridinium cation is 82.7 (2)°. Within the anion there is an intramolecular hydroxy-O—H...O(carboxylic acid) bond. In the crystal, the cation forms a single N+—H...Osulfonatehydrogen bond with the anion. These cation–anion pairs interact through duplex anion carboxylic acid O—H...Osulfonatehydrogen bonds, giving a centrosymmetric cyclic association [graph setR22(16)]. The crystals studied were non-merohedrally twinned.
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Dissertations / Theses on the topic "Carboxy Pyridine"

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Leyva-Ramos, Roberto, Raul Ocampo-Perez, Oliva L. Torres-Rivera, Maria S. Berber-Mendoza, and Nahum A. Medellin-Castillo. "Kinetics of pyridine adsorption onto granular activated carbon." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-191056.

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Leyva-Ramos, Roberto, Raul Ocampo-Perez, Oliva L. Torres-Rivera, Maria S. Berber-Mendoza, and Nahum A. Medellin-Castillo. "Kinetics of pyridine adsorption onto granular activated carbon." Diffusion fundamentals 11 (2009) 83, S. 1-2, 2009. https://ul.qucosa.de/id/qucosa%3A14054.

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Robveille, Jacques. "Synthèse de pyridine et d'isoquinoléine marquées au 14C sur l'hétérocycle azoté." Lyon 1, 1985. http://www.theses.fr/1985LYO10513.

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Trois procedes de synthese differents : la pyridine et les pyridines mono-2 et disubstituees-2,6 marquees c14 sont preparees a partir de composes marques dioxo-1,5 par cyclisation de leurs dioximes ; les pyridines substituees en 3 marquees c14 sont preparees par cyclisation thermique d'isocyanates de butadienyle prepares a partir des acides pentadiene-2,4oiques marques c14 ; les furo-, thieno- et pyrrolo (3,2-c) pyridines marquees c14 sont preparees a partir des acides furanne-, thiophene- et pyrroleacryliques-2 marques via les isocyanates. Application a la synthese d'isoquinoleines marques c14 a partir d'acides cinnamiques
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Bonnet, Véronique. "Synthèse et réactivité d'organomagnésiens en série pyridinique." Rouen, 2002. http://www.theses.fr/2002ROUES013.

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Plusieurs méthodes de préparation via des magnésiens pyridiniques ont été développées pour accéder à de nombreux composés. L'échange halogène-magnésium a été étudié à partir de nombreuses bromopyridines. Cette réaction menée à température ambiante avec le chlorure d'isopropylmagnésium a conduit aux chlorures de pyridylmagnésium correspondants, qui ont été piégés par différents électrophiles. La métallation dirigée par un groupement carboxamide secondaire ou pivaloylamino en position 2, a conduit, en utilisant deux bases magnésiées, à des halogénures de 3-pyridylmagnésiums qui ont alors été piégés par différents électrophiles. Des magnésiens benzéniques et pyridiniques ont été engagés dans des couplages catalysés par des métaux de transition avec de nombreux substrats aromatiques p-déficitaires azotés. La réaction a pu être menée à basse température, permettant ainsi l'utilisation de substrats sensibles aux additions nucléophiles ou porteurs de fonctions réactives
Several synthetic methods via magnesiated pyridines were developed to reach many compounds. The halogen-magnesium exchange was developed from many easily available bromopyridines. This reaction when proceeded at room temperature with isopropylmagnesium chloride gave the corresponding pyridylmagnesium chlorides, which could be trapped with various electrophiles. The metallation using isopropylmagnesium chloride or dibutylmagnesium as bases, directed by a secondary carboxamide or a pivaloylamino group at C2 led to 3-pyridylmagnesium halides, which were quenched by different electrophiles. At last, magnesiated benzenes and pyridines were involved in transition metals catalyzed couplings with many nitrogen p-deficient aromatic substrates. The reaction could proceed at low temperatures, allowing the use of substrates prone to nucleophilic attack or carrying reactive functions
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鄭嘉慧 and Kar-wai Anita Cheng. "Preparation, reactivities and oxidative catalytic activities of ruthenium(II) polypyridines, rhenium(I) carbonyl complexes andruthenium-encapsulated meso- and micro-porous molecular sieves." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31236662.

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Cheng, Kar-wai Anita. "Preparation, reactivities and oxidative catalytic activities of ruthenium(II) polypyridines, rhenium(I) carbonyl complexes and ruthenium-encapsulated meso- and micro-porous molecular sieves /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1973816X.

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Boucida, Seddik. "Synthèse et étude de cyclotriphosphazènes à liaisons phosphore-carbone porteurs de substituants pyridyle." Montpellier 2, 1998. http://www.theses.fr/1998MON20209.

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Dans le but d'acceder a des cyclotriphosphazenes porteurs d'heterocycles azotes par l'intermediaire de liaisons phosphore-carbone, deux voies de synthese ayant pour precurseur commun le n, n-diethyl di(3-pyridyl)phosphinamide ont ete suivies. Elles ont conduit, d'une part a l'hexa (3-pyridyl)cyclotriphosphazene et d'autre part, au n, n-diethyl 4, 4-bipyridyl-3, 3-ylene phosphinamide. L'hexa(3-pyridyl)cyclotriphosphazene a ete synthetise en cinq etapes en generalisant une suite de reactions deja mises au point lors de travaux anterieurs. Le n, n-diethyl 4, 4-bipyridyl-3, 3-ylene phosphinamide a, quant a lui, ete prepare en utilisant une voie d'acces inedite par ortholithiation et cylisation one pot du n, n-diethyl di(3-pyridyl)phosphinamide. Par hydrolyse acide de ce phosphinamide cyclique, l'acide 4, 4-bipyridyl-3, 3-ylene phosphinique a ete obtenu de maniere quantitative. Cet acide devrait permettre d'acceder au cyclotriphosphazene spiranique correspondant. Une etude systematique d'optimisation a ete entreprise pour la synthese du n, n-diethyl di(3-pyridyl)phosphinamide par voie organolithienne. Le meilleur taux de formation obtenu est de 42% et le meilleur rendement est de 30%. Une etude comparative a ete menee sur quelques proprietes chimiques et physicochimiques de l'hexa(2-pyridyl)cyclotriphosphazene et de l'hexa(3-pyridyl)cyclotriphosphazene (etudes de structures par diffraction des rayons x, complexation metallique, etudes rmn #3#1p, #1#3c et #1h). Les premiers resultats paraissent privilegier l'hexa(2-pyridyl)cyclotriphosphazene comme eventuel precurseur de materiau a proprietes electriques.
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Couve-Bonnaire, Samuel Castanet Yves Carpentier Jean-François. "Synthèse de dérivés pyridiniques fonctionnalisés-cétones, cétoamides et cétoesters-par réaction de carbonylation de précurseurs halogènes." [S.l.] : [s.n.], 2001. http://www.univ-lille1.fr/bustl-grisemine/pdf/extheses/50376-2001-163-164.pdf.

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Couve-Bonnaire, Samuel. "Synthèse de dérivés pyridiniques fonctionnalisés-cétones, cétoamides et cétoesters-par réaction de carbonylation de précurseurs halogènes." Lille 1, 2001. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2001/50376-2001-163-164.pdf.

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La pyridine et ses dérivées jouent un rôle majeur en chimie hétérocyclique de part leur vaste panoplie de potentialités chimiques et biologiques liées à la présence de l'hétéroatome d'azote. A partir de précurseurs halogénés aisément accessibles, deux nouvelles méthodes de synthèse de dérivés pyridiniques fonctionnalisés, catalysés au palladium, ont été développées. Elles conduisent respectivement à des aroylpyridines et des dérivés d'acides pyridylglyoxyliques qui s'avèrent être des intermédiaires potentiels dans la synthèse de nombreuses molécules d'intérêt pharmaceutique ou agrochimique. La première réaction étudiée est une réaction de couplage de substrat pyridinique avec un acide arylboronique sous monoxyde de carbone ; elle dérive de la réaction de Suzuki. L'influence sur la réaction de nombreux facteurs expérimentaux a été examinée. Les plus importants sont la pression de CO, la nature du précurseur catalytique et la nature du motif halogéné présent sur la pyridine. La réaction s'est révélée efficace avec des rendements isolés supérieurs à 80% et des sélectivités en cétones supérieures à 90%. La deuxième méthode de fonctionnalisation met en jeu la réaction de double carbonylation d'iodopyridines conduisant à des composés alpha-cétoamides et alpha-cétoesters
Une fois encore, les résultats dépendent des paramètres expérimentaux et plus particulièrement de la nature du précurseur catalytique et de la position du motif halogéné sur le cycle hétéroaromatique. Les meilleurs résultats sont obtenus en synthèse d'alpha-cétoamides, néanmoins les séléctivités en composé dicarbonylé, cétoamides ou coesters, sont les plus élevées rapportées pour ce type de composés. La dernière partie de nos travaux est consacrée à la réduction asymétrique des dérivés d'acides pyridyglyoxyliques synthétisés précédemment par deux méthodes différentes : l'hydrogénation asymétrique et la réduction par agent stoechiométrique. L'influence néfaste du noyau pyridinique sur la réaction a été évaluée
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Roudesly, Fares. "Fonctionnalisation C-H dirigée d'hétérocycles azotés." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS354.

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Ce travail de thèse a apporté sa contribution et de nouvelles connaissances dans le domaine de l’activation / fonctionnalisation C-H de noyaux azotés de type pyridine et pyrrole. D’abord, nous avons développé une méthode permettant l’allylation et l’oléfination régiosélective d’azines N-oxyde en utilisant un complexe de Pd(0) formé in situ. Le champ d’application de cette réactivité a ensuite été étudié. Des études expérimentales et des calculs DFT nous ont permis de proposer un mécanisme pour les étapes d’allylation et d’isomérisation. Nous proposons que l’étape d’activation C-H est l’étape cinétiquement déterminante du cycle catalytique et se fait selon un mécanisme de déprotonation/palladation par sphère externe. Ensuite, nous nous sommes intéressés à l’application de la réaction de Murai aux dérivés du 2- pyrrole carboxaldéhyde en utilisant un complexe de Ru(0). L’utilisation du monoxyde de carbone sous pression atmosphérique nous a permis d’obtenir les produits d’acylation en présence de différents vinylsilanes et styrènes. L’application de cette réactivité à d’autres dérivés du 2-pyrrole carboxaldéhyde est en cours d’étude au laboratoire
This thesis work has brought its contribution the field of C-H activation / functionalization of nitrogenous containing rings as pyridine and pyrrole. First, we developed a strategy for a Pd- catalyzed regioselective allylation and alkenylation of azine N-oxides. The scope of this reactivity has been studied. Experimental studies and DFT calculations allowed us to propose a mechanism for the allylation and isomerization steps. We propose that the C-H activation step is the rate determining step of the catalytic cycle, and that it takes place through an outer sphere deprotonation / palladation mechanism. Next, we applied the Murai reaction to 2-pyrrole- carboxaldehyde derivatives using a Ru(0) complex. Under an atmospheric pressure of carbon monoxide, we could obtain the acylated products in the presence of various vinylsilanes and styrenes. The application of this reactivity to other 2-pyrrole carboxaldehyde derivatives is under study in the laboratory
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Books on the topic "Carboxy Pyridine"

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Ansell, Martin F. Supplements to the 2nd Edition of Rodd's Chemistry of Carbon Compounds : Heterocyclic Compounds : Part I: Six-Membered Heterocyclic Compounds with Two Hetero-Atoms from Group V of the Periodic Table: The Pyridazine and Pyrimidine Groups. Elsevier Publishing Company, 1995.

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Book chapters on the topic "Carboxy Pyridine"

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "8 C5H5HeN Pyridine – helium (1/1)." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms, 171. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_139.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "9 C5H5NNe Pyridine – neon (1/1)." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms, 172. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_140.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "11 C5H5NXe Pyridine – xenon (1/1)." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms, 174. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_142.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "12 C5H6BrN Pyridine – hydrogen bromide (1/1)." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms, 175. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_143.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "117 C7H6N2 1H-Pyrrolo[2,3-b]pyridine." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms, 290. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_248.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "10 C5H5NO 3-Pyridinol." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms, 173. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_141.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "112 C7H6ArN2 1H-Pyrrolo[2,3-b]pyridine – argon (1/1)." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms, 285. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_243.

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Hara, Akira, Masaki Sakai, Toshihiro Nakayama, Yoshihiro Deyashiki, and Hideo Sawada. "Activation of Pulmonary Carbonyl Reductase by Aromatic Amines and Pyridine Ring-Containing Compounds." In Advances in Experimental Medicine and Biology, 361–70. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2904-0_38.

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Kharlamov, O., G. Kharlamova, N. Kirillova, O. Khyzhun, and V. Trachevskii. "Synthesis of New Carbon Compounds: N-doped Fullerene (C50N10)O3H10 and “Pyridine” Nanocarbon." In NATO Science for Peace and Security Series A: Chemistry and Biology, 245–53. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2488-4_27.

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Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "189 C10H12N2O (5S)-1-Methyl-5-(3-pyridinyl)-2-pyrrolidinone." In Molecules Containing Three or Four Carbon Atoms and Molecules Containing Five or More Carbon Atoms, 370–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41504-3_320.

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Conference papers on the topic "Carboxy Pyridine"

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Moreno-Hernandez, Lizbeth, Santiago Ospina-Rivas, Urel Andreas Espadín - Davila, Marko Jeran, and Rigoberto Barrios-Francisco. "Dehydrogenation of Hantzsch Dihydropyridines with Hetero-geneous Cobalt Oxide Catalyst Supported in N-Doped Acti-vated Carbon." In Socratic Lectures 7. University of Lubljana Press, 2022. http://dx.doi.org/10.55295/psl.2022.d17.

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Hantzsch dihydropyridines represent an important source of hydrogen to be transfered to other un-saturated organic molecules, leading the formation of pyridine aromatic ring as driving force. The hydrogen transfer process was evaluated using 1,4-dyhydropyridines and heterogeneous cobalt cat-alyst supported over N-doped activated carbon. The 4-position of the dihydropyridine ring was sub-stituted with H (4a), Me (4b) and Ph (4c) groups, showing that only 1 reacted to yield the correspond-ing pyridine compound indicating that the presence of steric hindrance took place on the reaction. Additionally; three solvents –tetrahydrofuran (THF), acetone, and acetonitrile– were tested, showing reactivity only with unsaturated ones, but not with THF. This observation indicates that dihydro-pyridine works as hydrogen donor and solvent as hydrogen aacceptor in the hydrogen transfer pro-cess. Keywords: Hantzsch dihyropyridine; Heterogeneous cobalt oxide catalyst; Hydrogen transfer; Unsaturated solvents
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Xu, Chao, Yu Du, Tingting Liu, and Suliang Yang. "Extraction of Nd(III), Eu(III), Am(III) and Cm(III) With 6-Carboxylic Di(2-Ethylhexyl) Amide Pyridine." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-90818.

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Abstract Solvent extraction has been widely used in spent fuel reprocessing because of its advantages such as high mass transfer rate, short production cycle, easy operation and large extraction capacity. The ligands containing soft S and N atoms usually have a good effect on the separation of trivalent lanthanides actinides. Herein, a novel extractant, 6-carboxylic di(2-ethylhexyl) amide pyridine (DEHAPA, HA), containing carboxyl and amide pyridine, was designed. The extraction of Nd(III), Eu(III), Am(III) and Cm(III), representing trivalent lanthanides and actinides, from nitric solution has been carried out by DEHAPA diluted in toluene as the organic phase. According to the slope analysis, the results show that the extraction of Ln(III) and An(III) with DEHAPA was governed by ion-exchange mechanism and the extraction equilibrium constants of Nd(III), Eu(III), Am(III) and Cm(III) have been calculated. The effect of concentration indicated that the structure of extraction complexes are 1:3/LnA3 and 1:3/AnA3. The temperature has a slight influence to distribution ratio of extraction Nd(III) and Eu(III). The infrared spectrum of DEHAPA and extracted complex analysis showed that -N-C = O and -O-C = O group coordinated with Nd(III). According to 1:3/LnA3 extracted complex structure, the Nd(III) ion in complex was coordinated with three -N-C = O, -O-C = O and pyridine group from three tridentate A− ligands by three tridentate A− ligand in organic solvent. This work reveals the unique extraction and coordination structure and provides a value reference to design more effective extraction ligands for Ln(III)/An(III) separation.
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Barrionuevo, Manoel V. F., Yuri Dezotti, Rafael Añez, Wdeson Pereira Barros, and Miguel A. San-Miguel. "Structural, Electronic, Magnetic and Adsorption Study of a Cu–3,4–Hpvb MOF." In VIII Simpósio de Estrutura Eletrônica e Dinâmica Molecular. Universidade de Brasília, 2020. http://dx.doi.org/10.21826/viiiseedmol202034.

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Herein, we present a theoretical study of a proposed metal-organic framework (MOF) based on Cu complexes of 3{2-(4-pyridinyl)vinylbenzoic} acid (3,4–Hpvb), which belongs to a monoclinic crystal symmetry system of type P121/c1. By using periodic boundary conditions (PBC) within the density functional theory (DFT) framework, as well as through the density of states (DOS) analysis, we suggest that thanks to the metal center, the bulk material has a magnetic character of about 2.27 μB/cell. All the coordinated atoms presented a slight magnetization character, and more interestingly, the carboxylic carbon from the acid groups is also influenced by the partial magnetization of its oxygen atom, which coordinates to the metal center. Yet for the adsorption studies, we show that the adsorption of a monoatomic gas as Ar tends to present little to no polarization of the MOF’s organic structure, and there is a decrease of the adsorption energy as more Ar atoms are added to the pore. Also, for CO2 the adsorption energy tends to decrease from 1 to 2 molecules but increase as the pore is populated with 3 to 4 molecules, causing a significant polarization of the MOF’s structure. Finally, we investigated the adsorption of dimethylformamide (DMF), which caused an expressive polarization of the MOF’s structure, and showed a strong interaction with the MOF, with increasing strength from 1 to 4 molecules.
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