Relevant bibliographies by topics / Pyridinium compounds – Derivatives (Chemicals)

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters

Academic literature on the topic 'Pyridinium compounds – Derivatives (Chemicals)'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Pyridinium compounds – Derivatives (Chemicals).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Pyridinium compounds – Derivatives (Chemicals)"

1

El Kharrat, Salem, Philippe Laurent, Laurent Boiteau, and Hubert Blancou. "Novel Synthesis of Substituted 2-Trifluoromethyl and 2-Perfluoroalkyl N-Arylpyridinium Compounds—Mechanistic Insights." Molecules 24, no. 12 (2019): 2328. http://dx.doi.org/10.3390/molecules24122328.

Full text
Abstract:
We report a new one-pot synthesis of 2-trifluoromethylated/2-perfluoroalkylated N-aryl-substituted pyridiniums, 5,6,7,8-tetrahydroquinoliniums and 6,7,8,9-tetrahydro-5H-cyclohepta[b]-pyridinium compounds starting from an activated β-dicarbonyl analogue (here a perfluoro-alkylated gem-iodoacetoxy derivative), an aromatic amine and a (cyclic or acyclic) ketone. The key step of this multicomponent reaction, involves the formation of a 3-perfluoroalkyl-N,N’-diaryl-1,5-diazapentadiene intermediate, various examples of which were isolated and characterized for the first time, together with investiga
APA, Harvard, Vancouver, ISO, and other styles
2

Wenska, Grazyna, Bohdan Skalski, Stefan Paszyc, and Zofia Gdaniec. "Photochemistry of N-(pyrimidin-2-one-4-yl)pyridinium derivatives. The ring contraction of pyrimidinone into imidazolinone." Canadian Journal of Chemistry 73, no. 12 (1995): 2178–84. http://dx.doi.org/10.1139/v95-270.

Full text
Abstract:
Photochemical reactions (λ > 300 nm) of N-(1-methylpyrimidin-2-one)-and N-(1,5-dimethyl-pyrimidin-2-one)pyridinium chlorides were studied in deoxygenated aqueous solution at various pH's. Only the former compound was found to be reactive under these conditions to give pyrimidine ring contraction photoproducts 1-methyl-4-imidazolin-2-one and 1-methyl-4-imidazolin-2-one-5-carboxyaldehyde, with pH-dependent chemical yields. The photochemical pyrimidine ring contraction reaction does not occur for other photochemically reactive pyrimidin-2-ones bearing 3-methylimidazolium-1,1,2,4-triazol-1-yl,
APA, Harvard, Vancouver, ISO, and other styles
3

Montes-González, Ingrid, Ambar M. Alsina-Sánchez, Juan C. Aponte-Santini, Sara M. Delgado-Rivera, and Geraldo L. Durán-Camacho. "Perspectives of ferrocenyl chalcones: synthetic scaffolds toward biomedical and materials science applications." Pure and Applied Chemistry 91, no. 4 (2019): 653–69. http://dx.doi.org/10.1515/pac-2018-0802.

Full text
Abstract:
Abstract Ferrocene and its derivatives constitute versatile and interesting scaffolds for the global chemical enterprise due to its multiple applications that range from biomedical to materials science. Ferrocenyl derivatives are the leading compounds in our research for the syntheses and characterization as well as their potential biological applications. Among them, our recent focus has been in ferrocenyl chalcones as a framework for further derivatization. The proposed modifications consist on the incorporation of heterocyclic moieties into the ferrocenyl chalcone core. This can be afforded
APA, Harvard, Vancouver, ISO, and other styles
4

Freitas, Emanuelle Dantas, Celso Fidelis Moura Jr., Jonas Kerwald, and Marisa Masumi Beppu. "An Overview of Current Knowledge on the Properties, Synthesis and Applications of Quaternary Chitosan Derivatives." Polymers 12, no. 12 (2020): 2878. http://dx.doi.org/10.3390/polym12122878.

Full text
Abstract:
Chitosan, a chitin-derivative polysaccharide, known for its non-toxicity, biocompatibility and biodegradability, presents limited applications due to its low solubility in neutral or basic pH medium. Quaternization stands out as an alternative to modify this natural polymer, aiming to improve its solubility over a wide pH range and, consequently, expand its range of applications. Quaternization occurs by introducing a quaternary ammonium moiety onto or outside the chitosan backbone, via chemical reactions with primary amino and hydroxyl groups, under vast experimental conditions. The oldest an
APA, Harvard, Vancouver, ISO, and other styles
5

Flieger, Jolanta, and Michał Flieger. "Ionic Liquids Toxicity—Benefits and Threats." International Journal of Molecular Sciences 21, no. 17 (2020): 6267. http://dx.doi.org/10.3390/ijms21176267.

Full text
Abstract:
Ionic liquids (ILs) are solvents with salt structures. Typically, they contain organic cations (ammonium, imidazolium, pyridinium, piperidinium or pyrrolidinium), and halogen, fluorinated or organic anions. While ILs are considered to be environmentally-friendly compounds, only a few reasons support this claim. This is because of high thermal stability, and negligible pressure at room temperature which makes them non-volatile, therefore preventing the release of ILs into the atmosphere. The expansion of the range of applications of ILs in many chemical industry fields has led to a growing thre
APA, Harvard, Vancouver, ISO, and other styles
6

Armand, Joseph, Line Boulares, Christian Bellec, and Jean Pinson. "Preparation, chemical and electrochemical reduction of pyrido[2,3-b]quinoxalines and pyrido[3,4-b]quinoxalines." Canadian Journal of Chemistry 66, no. 6 (1988): 1500–1505. http://dx.doi.org/10.1139/v88-242.

Full text
Abstract:
The reaction of 2,3-diaminopyridine with the dimeric 4,5-dimethylcyclohexa-3,5-dien-1,2-dione gives 7,8-dimethylpyrido[2,3-b]quinoxaline, 1, in good yields; in the same way 3,4-diaminopyridine gives the 7,8-dimethylpyrido[3,4-b]quinoxaline 2. The electrochemical reduction of 1 and 2 in hydroorganic medium gives the 5,10-dihydro compounds 6 and 7; 1 and 2 present a single 2e− polarographic wave, in contrast to phenazine which shows two monoelectronic waves. The catalytic hydrogenation of 1 and 2 gives 6 and 7 and does not involve the pyridinic ring as in the case of pyridopyrazines. AlLiH4 does
APA, Harvard, Vancouver, ISO, and other styles
7

Cychon, Christine, Ellen Lichte, and Matthias Köck. "The marine sponge Agelas citrina as a source of the new pyrrole–imidazole alkaloids citrinamines A–D and N-methylagelongine." Beilstein Journal of Organic Chemistry 11 (October 29, 2015): 2029–37. http://dx.doi.org/10.3762/bjoc.11.220.

Full text
Abstract:
The chemical investigation of the Caribbean sponge Agelas citrina revealed four new pyrrole–imidazole alkaloids (PIAs), the citrinamines A–D (1–4) and the bromopyrrole alkaloid N-methylagelongine (5). All citrinamines are dimers of hymenidin (6) which was also isolated from this sponge as the major metabolite. Citrinamines A (1) and B (2) are derivatives of the PIA dimer mauritiamine (7), whereas citrinamine C (3) is derived from the PIA dimer nagelamide B (8). Citrinamine D (4) shows an uncommon linkage between the imidazole rings of both monomeric units as it is only observed in the benzocyc
APA, Harvard, Vancouver, ISO, and other styles
8

Agbodan, Kokou Agbékonyi, Oudjaniyobi Simalou, Gneiny Whad Tchani, and Koffi Jondo. "Etude de l’influence de la basicité sur l’enthalpie de réaction des sels N-méthoxycarbonyl-(oxy)-pyridiniums." International Journal of Biological and Chemical Sciences 14, no. 4 (2020): 1489–98. http://dx.doi.org/10.4314/ijbcs.v14i4.26.

Full text
Abstract:
Les hétérocycles sont importants, aussi bien dans les domaines biologique, médicinal et thérapeutique (vitamines, hormones, antibiotiques, etc), que dans le secteur industriel et technologique (inhibiteurs de corrosion, colorants, agents stabilisants, pesticides, herbicides. Les chloroformiates ou chlorocarbonates sont les esters dérivés de l’acide chloroformique. La chimie des N-oxydes hétérocycliques (pyridine et N-oxydes) a connu un important développement au cours des dernières années. L’objectif principal du présent travail est l’étude de l’action du métoxycarbonylchloride sur la pyridine
APA, Harvard, Vancouver, ISO, and other styles
9

Althagbi, Hanan I., Walied M. Alarif, Khalid O. Al-Footy, and Ahmed Abdel-Lateff. "Marine-Derived Macrocyclic Alkaloids (MDMAs): Chemical and Biological Diversity." Marine Drugs 18, no. 7 (2020): 368. http://dx.doi.org/10.3390/md18070368.

Full text
Abstract:
The curiosity and attention that researchers have devoted to alkaloids are due to their bioactivities, structural diversity, and intriguing chemistry. Marine-derived macrocyclic alkaloids (MDMAs) are considered to be a potential source of drugs. Trabectedin, a tetrahydroisoquinoline derivative, has been approved for the treatment of metastatic soft tissue sarcoma and ovarian cancers. MDMAs displayed potent activities that enabled them to be used as anticancer, anti-invasion, antimalarial, antiplasmodial, and antimicrobial. This review presents the reported chemical structures, biological activ
APA, Harvard, Vancouver, ISO, and other styles
10

Urban, Jiří, and Jiří Volke. "1,2,4,6-Substituted Pyridinium Derivatives-Synthesis and Properties." Collection of Czechoslovak Chemical Communications 59, no. 11 (1994): 2545–61. http://dx.doi.org/10.1135/cccc19942545.

Full text
Abstract:
In relation to the investigation of their electrochemical properties we prepared 24 pyridinium derivatives (I, IV, V, VI, VII) with alkyl and aryl substituents in positions 1, 2, 4 and 6, and 19 derivatives with two pyridinium nuclei (II, III, VIII, IX, X) connected by an aliphatic or an aromatic chain. All the compounds were prepared from the corresponding pyrylium derivatives by reacting them with primary amines. The pyrylium derivatives were synthesized by aldolization and acylation followed by cyclization leading to a heteroaromatic pyrylium system. In nucleophilic reactions with amines, t
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Pyridinium compounds – Derivatives (Chemicals)"

1

Ridgway, Benjamin Marc. "Crystal engineering of salts of pyridinium, and its derivatives, with 1,2-discarbonyl compounds." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541640.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wong, Yung-Sing. "Nouveaux intermediaires chiraux de type 1,4-dihydropyridine et equivalents de sels de 3,4-dihydropyridinium pour la synthese asymetrique de piperidines polysubstituees. Application a la synthese enantioselective du 3-ppp et de l'indolizidine 195b." Paris 11, 1994. http://www.theses.fr/1994PA112105.

Full text
Abstract:
L'application de la reaction de zincke a des amines primaires enantiomeriquement pures a donne des sels de pyridinium portant un centre asymetrique directement fixe sur l'azote, a partir de la pyridine correspondante, substituee ou non en position 3. L'etude de la reduction par le dithionite de sodium de ces sels a conduit de maniere efficace a de nouveaux intermediaires 1,4-dihydropyridines chiraux. La reduction des sels n-substitues par une chaine phenylethanol donne des 1,4-dihydropyridines qui s'isomerisent en 3,7,8,8a-tetrahydro-2h-oxazolo3,2-apyridines. Une etude structurale a ete entrep
APA, Harvard, Vancouver, ISO, and other styles
3

Gong, Yong-Hua. "Synthesis electrochemical and fluorescence studies of 1,2,4,5-tetrazine derivatives : towards molecular sensors for anions and electron-rich compounds and synthesis and electrochemical study of ferrocene-containing pyridinium salts." Cachan, Ecole normale supérieure, 2007. http://tel.archives-ouvertes.fr/tel-00160587.

Full text
Abstract:
Cette thèse se compose de deux parties. La première traite de la synthèse et des études électrochimiques et de fluorescence de nouveaux dérivés de la 1,2,4,5 tétrazine en tant que sondes moléculaires pour des anions et des composés riches en électrons. La seconde traite de la synthèse et des études électrochimiques préliminaires de sels de ferrocène à base de pyridinium. Dans la partie I, une vue d'ensemble de la chimie des 1,2,4,5 tétrazine (s tétrazines) est présentée. Les stétrazines ont déjà trouvé des applications dans beaucoup de domaines, mais leur capacité à se lier avec des anions ou
APA, Harvard, Vancouver, ISO, and other styles
4

Paris, Antoine. "Synthèses de dérivés silylés en séries pyridinique et diazinique. Application de la réaction d'ipso-désilylation à l'élaboration de polyhétérocycles." Rouen, 1997. http://www.theses.fr/1997ROUES053.

Full text
Abstract:
Ce travail décrit la préparation de dérivés silylés en séries pyridinique et diazinique. L'emploi de la technique de piégeage in situ du lithien avec le chlorure de triméthyl-silyle a permis d'obtenir une fonctionnalisation régioselective sur certaines pyridines et diazines. Une étude de la réaction d'ipso-désilylation a été effectuée sur ces différents composés. L'intérêt de l'utilisation du groupement triméthylsilyle dans la série des hétérocycles pi-déficitaires est illustré par les synthèses de divers polyhétérocycles (γ-Carboline, Benzo[h]- 1,6-naphtyridine, 5,6-Diarylpyridazin-3-one) par
APA, Harvard, Vancouver, ISO, and other styles
5

Hubley, Christian T. "Synthesis and mechanistic study of alkoxypyridinium salt derivatives." 2011. http://liblink.bsu.edu/uhtbin/catkey/1657731.

Full text
Abstract:
2-Benzyloxy-1-methylpyridinium trifluoromethanesulfonate (commonly referred to as benzyloxypyridinium triflate or Dudley’s salt) is a novel protecting reagent for the conversion of an alcohol functional group into a benzyl ether. This novel protecting reagent allows for protection of an alcohols, carboxylic acids, and other nucleophiles under mild conditions. The two traditional methods of forming this benzyl ether rely on either basic (Williamson ether synthesis) or acidic (coupling via trichloroacetimidate with a strong acid) conditions which may potentially decompose sensitive substrates. T
APA, Harvard, Vancouver, ISO, and other styles
6

Nwamadi, Mutshinyalo Stephen. "Synthesis and further studies of chemical transformation of the 2-aryl-3-halogenoquinolin-4(1h)-one derivatives." Thesis, 2005. http://hdl.handle.net/10500/1373.

Full text
Abstract:
Specially prepared 2-arylquinolin-4(1H)-ones and their 2-aryl-1-methyl-4-quinolone derivatives were converted in high yield and purity to the corresponding C-3 brominated products using pyridinium tribromide in acetic acid at room temperature. The 2-arylquinolin-4(1H)-ones were reacted with iodine and Na2CO3 mixture in THF at room temperature to produce the 3-iodo-2-arylquinolin-4(1H)-one derivatives. The latter were, in turn, N-methylated using NaH-MeI mixture in dry THF to afford the corresponding 2-aryl-3-iodo-1-methyl-4-quinolone derivatives. The 3-iodo-2-arylquinolin-4(1H)-one and 2-a
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Pyridinium compounds – Derivatives (Chemicals)"

1

Fernandez, Jose Miguel Aurrecoechea. Pyridine and benzothiazole derivatives in carbanionic reactions. 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Pyridinium compounds – Derivatives (Chemicals)"

1

Ma, Wangjing, Bonan Liu, Duanda Wang, Jun Zhao, Lu Zhang, and Lei Zhang. "Catalytic Isomerization of Olefins and Theirs Derivatives: A Brief Overview." In Alkenes - Recent Advances, New Perspectives and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99076.

Full text
Abstract:
Carbon–carbon double bond (CCDB) isomerization is a method for synthesizing new organic compounds from olefins and their derivatives, which was based on C=C migration along carbon chain and cis/trans transform, and it plays a vital role in the fields of organic synthesis, synthesis of daily chemicals, raw oil’s development and synthesis of natural products and so on. In this paper, advances of five types of catalytic methods for CCDB of olefins and their derivatives since the 1960s were discussed in detail; Based on his recent work, the author mainly introduces the application and development of photocatalysis in CCDB of olefins and their derivatives.
APA, Harvard, Vancouver, ISO, and other styles
2

Nageswar, Y. V. D. "Green Organic Inhibitors for Corrosion Protection." In Sustainable Corrosion Inhibitors. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901496-5.

Full text
Abstract:
Plants are a rich source of different varied organic compounds. Due to the important applications of naturally occurring chemicals their derivatives are also pursued for modifying and potentiating the activities of natural products. Metallic corrosion is a natural process resulting in heavy losses in various fields. Non hazardous and non toxic corrosion inhibitors gained significance due to the environmental regularities and guidelines issued in the course of saving the pristine nature of environment and to maintain the sustainability of our earth. Green corrosion inhibitors play a potential role for the above said cause. Recent research contributions on green corrosion inhibitors from the active researchers in the concerned expertise are presented briefly here to give an idea about the current research activity across the world.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Pyridinium compounds – Derivatives (Chemicals)' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography