Relevant bibliographies by topics / Phosphine pyridine derivatives

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

Academic literature on the topic 'Phosphine pyridine derivatives'

Author: Grafiati
Published: 24 April 2022
Last updated: 30 July 2025

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Journal articles on the topic "Phosphine pyridine derivatives"

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Telezhkin, A. A., P. A. Volkov, and K. O. Khrapova. "Nucleophilic substitution of hydrogen in pyridine and its derivatives by organophosphorus nucleophiles in the presence of electron-deficient acetylenes." Журнал органической химии 59, no. 10 (2023): 1269–300. http://dx.doi.org/10.31857/s0514749223100026.

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The review considers publications on a new easy functionalization of pyridinoids (pyridines, quinolines, isoquinolines, acridine, phenanthridine) by the electron-deficient acetylene (esters of acetylenecarboxylic acids, acylacetylenes, cyanoacetylenes)/P-nucleophile (phosphine chalcogenides, H -phosphonates) system. Particular attention is paid to the SN H reaction of regioselective cross-coupling of pyridines with secondary phosphine chalcogenides, initiated by acylacetylenes and leading to the formation of 4-chalcogenophosphorylpyridines. In these processes, acetylenes act as trimodal adjuva
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Radhakrishna, Latchupatula, Basvaraj S. Kote, Harish S. Kunchur, Madhusudan K. Pandey, Dipanjan Mondal, and Maravanji S. Balakrishna. "1,2,3-Triazole based ligands with phosphine and pyridine functionalities: synthesis, PdII and PtII chemistry and catalytic studies." Dalton Transactions 51, no. 14 (2022): 5480–93. http://dx.doi.org/10.1039/d2dt00112h.

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This paper describes the synthesis of pyridine- and phosphine appended triazole ligands and their PdII and PtII complexes. Palladium complexes showed excellent catalytic efficiency in the α-alkylation reaction of acetophenone derivatives with alcohols.
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Sharif, Muhammad, Khurram Shoaib, Shahzad Ahmed, et al. "Synthesis of functionalised fluorinated pyridine derivatives by site-selective Suzuki-Miyaura cross-coupling reactions of halogenated pyridines." Zeitschrift für Naturforschung B 72, no. 4 (2017): 263–79. http://dx.doi.org/10.1515/znb-2016-0213.

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AbstractThe Suzuki-Miyaura reaction of 2,6-dichloro-3-(trifluoromethyl)pyridine with 1 equiv of arylboronic acids resulted in site-selective formation of 2-aryl-6-chloro-3-(trifluoromethyl)pyridine. Due to electronic reasons, the reaction takes place at the sterically more hindered position. The selectivity was rationalised by DFT calculations. The one-pot reaction with two different arylboronic acids afforded 2,6-diaryl-3-(trifluoromethyl)pyridine containing two different aryl substituents. The reactions proceeded smoothly in the absence of phosphine ligands. In addition, Suzuki-Miyaura react
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El Abbouchi, Abdelmoula, Jamal Koubachi, Nabil El Brahmi, and Said El Kazzouli. "Direct arylation and Suzuki-Miyaura coupling of imidazo[1,2-a]pyridines catalyzed by (SIPr)Pd(allyl)Cl complex under microwave-irradiation." Mediterranean Journal of Chemistry 9, no. 5 (2019): 347–54. http://dx.doi.org/10.13171/mjc1911271124sek.

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A short and practical arylation of imidazo[1,2-a]pyridine and imidazole derivatives with aryl halides or aryl boronic acids as coupling partners was successfully carried out using phosphine-free (SIPr)Pd(allyl)Cl as the catalyst [SIPr: (N,N’-bis(2,6-diisopropylphenyl)-4,5-dihydroimidazol-2-ylidene)] ((SIPr)Pd(allyl)Cl complex). 3,6-disubstituted imidazo[1,2-a]pyridine and 5-substituted imidazole compounds were obtained in good to excellent yields in only 1h under microwave-assisted C-H arylation and Suzuki-Miyaura coupling reaction conditions.
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Volkov, Pavel A., Nina I. Ivanova, Anton A. Telezhkin, et al. "Synthesis and antimicrobial activity of new phosphorus-containing pyridine derivatives." Butlerov Communications 57, no. 1 (2019): 50–56. http://dx.doi.org/10.37952/roi-jbc-01/19-57-1-50.

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The directed synthesis of new pharmacophoric molecules is one of the urgent tasks of organic chemistry. A special place in this area is occupied by vital nitrogen-containing heterocycles and their derivatives, on the basis of which new promising precursors of drugs are created. For example, pyridinium salts are part of such well-known drugs as pyridoxine, mexidol and metadoxine. Phosphorus-containing pyridine derivatives, among which compounds with cytotoxic and antimicrobial properties have been identified, are also being actively studied now. Thus, the development of convenient approaches fo
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Oestreich, Martin, Dou Hong, Wenbin Mao, and Elisabeth Irran. "Enantioselective, Copper-Catalyzed Addition of Nucleophilic Silicon to Alkenyl-Substituted Phosphine Oxides." Synthesis 54, no. 08 (2021): 2049–56. http://dx.doi.org/10.1055/a-1701-7500.

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AbstractAn enantioselective β-silylation of α,β-unsaturated phosphine oxide derivatives using a silylboronic ester as the silicon pronucleophile is reported. The reaction is catalyzed by copper salts in the presence of chiral pyridine–oxazoline (PyOx) ligands. Good to high enantioselectivities (≤95% ee) are obtained for β-aryl-substituted acceptors whereas alkyl residues in the β-position led to a lower ee value for 1° and no reaction for 2° and 3°. The new method represents another way of accessing α-chiral silanes and complements the known β-borylation.
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Sánchez López, Nicolás, Erick Nuñez Bahena, Alexander D. Ryabov, Pierre Sutra, Alain Igau, and Ronan Le Lagadec. "Synthesis, Properties, and Electrochemistry of bis(iminophosphorane)pyridine Iron(II) Pincer Complexes." Inorganics 12, no. 4 (2024): 115. http://dx.doi.org/10.3390/inorganics12040115.

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Iron derivatives have emerged as valuable catalysts for a variety of transformations, as well as for biological and photophysical applications, and iminophosphorane can be considered an ideal ligand scaffold for modulating electronic and steric parameters in transition metal complexes. In this report, we aimed to synthesize dichloride and dibromide iron(II) complexes supported by symmetric bis(iminophosphorane)pyridine ligands, starting from readily available ferrous halides. The ease of synthesis of this class of ligands served to access several derivatives with distinct electronic and steric
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Poater, Albert, and Luigi Cavallo. "A comprehensive study of olefin metathesis catalyzed by Ru-based catalysts." Beilstein Journal of Organic Chemistry 11 (September 29, 2015): 1767–80. http://dx.doi.org/10.3762/bjoc.11.192.

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During a Ru-catalyzed reaction of an olefin with an alkylidene moiety that leads to a metallacycle intermediate, the cis insertion of the olefin can occur from two different directions, namely side and bottom with respect to the phosphine or N-heterocyclic ligand (NHC), depending on the first or second generation Grubbs catalyst. Here, DFT calculations unravel to which extent the bottom coordination of olefins with respect is favored over the side coordination through screening a wide range of catalysts, including first and second generation Grubbs catalysts as well as the subsequent Hoveyda d
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Nogueira, Thais Cristina Mendonça, Lucas dos Santos Cruz, Maria Cristina Lourenço, and Marcus Vinicius Nora de Souza. "Design, Synthesis and Anti-tuberculosis Activity of Hydrazones and N-acylhydrazones Containing Vitamin B6 and Different Heteroaromatic Nucleus." Letters in Drug Design & Discovery 16, no. 7 (2019): 792–98. http://dx.doi.org/10.2174/1570180815666180627122055.

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Background: The term vitamin B6 refers to a set of six compounds, pyridoxine,pyridoxal ,and pyridoxamine and their phosphorylated forms, among which pyridoxal 5´-phosphate (PLP) is the most important and active form acting as a critical cofactor. These compounds are very useful in medicinal chemistry because of their structure and functionalities and are also used in bioinorganic chemistry as ligands for complexation with metals. Methods: In this study, a series of hydrazones 1a-g and N-acylhydrazones 2a-f containing vitamin B6 have been synthesized from commercial pyridoxal hydrochloride and
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Holý, Antonín, and Ivan Rosenberg. "Synthesis of isomeric and enantiomeric O-phosphonylmethyl derivatives of 9-(2,3-dihydroxypropyl)adenine." Collection of Czechoslovak Chemical Communications 52, no. 11 (1987): 2775–91. http://dx.doi.org/10.1135/cccc19872775.

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Reaction of 9-(S)-(2,3-dihydroxypropyl)adenine (I) with chloromethanephosphonyl chloride (VII) in pyridine or triethyl phosphate, or with chloromethyl(pyridinio)phosphonate (IX) in pyridine, afforded a mixture of 2'-(IV) and 3'-O-chloromethanephosphonate (V) which were separated on anion exchange resin or alkylsilica gel. Treatment of compounds IV and V with aqueous alkaline hydroxide, followed by deionization, gave 9-(S)-(2-hydroxy-3-phosphonylmethoxypropyl)adenine (VI) and 9-(S)-(3-hydroxy-2-phosphonylmethoxypropyl)adenine (III) (HPMPA), respectively. The (R)- and (RS)-forms of III and VI we
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Dissertations / Theses on the topic "Phosphine pyridine derivatives"

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Pięta, Ewa. "Spektroskopowa analiza struktur molekularnych i procesu adsorpcji fosfinowych pochodnych pirydyny, potencjalnych inhibitorów aminopeptydazy N." Praca doktorska, 2015. https://ruj.uj.edu.pl/xmlui/handle/item/45025.

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Book chapters on the topic "Phosphine pyridine derivatives"

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Gibson, Rosalind S. "Assessment of vitamin B6 status." In Principles Of Nutritional Assessment. Oxford University PressNew York, NY, 2005. http://dx.doi.org/10.1093/oso/9780195171693.003.0021.

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Abstract The term “vitamin B6” is used as the generic descriptor for 3-hydroxy-2-methylpyridine derivatives that exhibit the biological activity of pyridoxine in rats. The requirement for vitamin B6 is linked to the intake of protein and the function of the vitamin in amino acid metabolism. The adult human has only a small body pool of this vitamin (20–30 mg), which is rapidly depleted when intakes of the vitamin are inadequate. Most of the vitamin B6 in the body pool is in the form of pyridoxal-5/-phosphate (PLP) in muscle bound to phosphorylase.
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