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Relevant bibliographies by topics / Phosphonate(O,O-dialkyl oxo-2 alkyl) / Journal articles

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Journal articles on the topic 'Phosphonate(O,O-dialkyl oxo-2 alkyl)'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Shankar, Ravi, Meenal Asija, Nisha Singla, Gabriele Kociok-Köhn, and Kieran C. Molloy. "Synthesis, characterization and hydrolytic stability of diorganotin(IV)bis(O-alkyl alkylphosphonate)s." Canadian Journal of Chemistry 92, no. 6 (2014): 549–55. http://dx.doi.org/10.1139/cjc-2013-0486.

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Diorganotinbis(O-alkyl alkylphosphonate)s, R2Sn(O2P(OR1)R1)2 [R1 = Me, R = Me (1), Et (2), n-Bu (3); R1 = Et, R = Me (4), Et (5), n-Bu (6)] have been synthesized from the reaction between dimethyl/diethyl/di-n-butyltin dichloride and dialkyl alkylphosphonates, (R1O)2P(O)R1, in a solvent-free medium (120 °C, 18 h). X-ray crystal structure of 1 reveals two independent molecules in the unit cell that form one-dimensional polymeric motifs by virtue of bridging bidentate phosphonate groups. The structural attribute of each polymeric chain represents an orderly infinite array of -[Sn-O-P-O-]2 8-memb

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2

Koleva, Ana I., Nevena I. Petkova-Yankova, and Rositca D. Nikolova. "Synthesis and Chemical Properties of 3-Phosphono-coumarins and 1,2-Benzoxaphosphorins as Precursors for Bioactive Compounds." Molecules 24, no. 11 (2019): 2030. http://dx.doi.org/10.3390/molecules24112030.

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Coumarins are an important class of natural heterocyclic compounds that have attracted considerable synthetic and pharmacological interest due to their various biological activities. This review emphasizes on the synthetic methods for the preparation of dialkyl 2-oxo-2H-1-benzo- pyran-3-phosphonates and alkyl 1,2-benzoxaphosphorin-3-carboxylates. Their chemical properties as acceptors in conjugate addition reactions, [2+2] and [3+2] cycloaddition reactions are discussed.

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3

Leslie, DR, та S. Pantelidis. "Intramolecular Catalysis of Dialkyl ω-Aminoalkylphosphonate Hydrolysis". Australian Journal of Chemistry 47, № 3 (1994): 545. http://dx.doi.org/10.1071/ch9940545.

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The influence that intramolecular catalysis of hydrolysis of O-alkyl S-[2-( dialkylamino )ethyl] alkylphosphonothioates by amino groups may have on the product distribution of the reaction is investigated by study of a series of model compounds. The hydrolysis of diethyl [ω-( ethylamino )alkyl] phosphonates and diethyl [ω-( diethylamino )alkyl] phosphonates has been investigated at 75°C over the pH range 8.21-11.45. Contributions to hydrolysis of the ethoxy groups by intramolecular catalysis by the amino groups have been identified for [2-(amino)ethyl]- and [3-(amino) propyl ]- phosphonates. S

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4

Janeba, Zlatko, Milena Masojídková, and Antonín Holý. "Alternative synthesis of 9-{3-[(diisopropoxyphosphoryl)methoxy]-2-hydroxypropyl}adenine and its free phosphonates substituted at the C-8 position of purine base." Collection of Czechoslovak Chemical Communications 75, no. 3 (2010): 371–81. http://dx.doi.org/10.1135/cccc2009569.

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For its high therapeutic effect, (S)-9-[3-hydroxy-2-(phosphonomethoxy)propyl]adenine (HPMPA) is an important member of a class of acyclic nucleoside phosphonates (ANPs). Although its constitutional isomer, 9-[2-hydroxy-3-(phosphonomethoxy)propyl]adenine (iso-HPMPA), exhibits no antiviral activity, our general interest in C-8 substituted adenine ANPs led us to prepare certain iso-HPMPA derivatives modified at the C-8 position of adenine. Novel alkylating agent, diisopropyl {[2-(tetrahydro-2-pyranyl)oxy-3-tosyloxypropoxy]methyl}phosphonate (9), was prepared by procedure starting from allyl alcoh

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5

Tajti, Ádám, Nóra Tóth, Bettina Rávai, István Csontos, Pál Tamás Szabó, and Erika Bálint. "Study on the Microwave-Assisted Batch and Continuous Flow Synthesis of N-Alkyl-Isoindolin-1-One-3-Phosphonates by a Special Kabachnik–Fields Condensation." Molecules 25, no. 14 (2020): 3307. http://dx.doi.org/10.3390/molecules25143307.

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A simple and efficient microwave (MW)-assisted method was elaborated for the catalyst-free synthesis of isoindolin-1-one-3-phosphonates by the three-component condensation of 2-formylbenzoic acid, aliphatic primary amines and various dialkyl phosphites. The batch and the continuous flow reactions were optimized in respect of the temperature, the reaction time and the molar ratio of the starting materials. To evaluate the potential of MW irradiation, comparative thermal experiments were also carried out. In order to obtain “real time” information about the condensation, the special Kabachnik–Fi

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6

Hu, Liming, Zhiyuan Chen, Shengmei Lu, Xueshu Li, Zhaojie Liu, and Hansheng Xu. "SYNTHESIS OF O,O-DIPHENYL [SUBSTITUTED (2-SELENOMORPHOLIN-4-YL-ACETYL AMINO)] ALKYL PHOSPHONATES." Phosphorus, Sulfur, and Silicon and the Related Elements 179, no. 6 (2004): 1065–73. http://dx.doi.org/10.1080/10426500490459687.

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7

Singh, O. P., R. K. Mehrotra, and G. Srivastava. "Metal and Organometal Complexes of Oxy and Thiophosphorus Acids. Part VI. O-Alkyl-O-boryl Phosphonates." Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 21, no. 5 (1991): 717–28. http://dx.doi.org/10.1080/15533179108016838.

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8

SINGH, O. P., R. K. MEHROTRA, and G. SRIVASTAVA. "ChemInform Abstract: Metal and Organometal Complexes of Oxy and Thiophosphorus Acids. Part 6. O-Alkyl-O-boryl Phosphonates." ChemInform 23, no. 21 (2010): no. http://dx.doi.org/10.1002/chin.199221225.

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9

Genov, Daniel G., and John C. Tebby. "Conformational Analysis of (2-Substituted-alkyl)phosphoryl Compounds. 1. NMR Spectroscopic Studies of Dialkyl (2-Hydroxyalkyl)phosphonates and Their Carboxylic Esters." Journal of Organic Chemistry 61, no. 7 (1996): 2454–59. http://dx.doi.org/10.1021/jo950364n.

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10

He, Peng, Qun Yuan, and Chengye Yuan. "Studies on Organophosphorus Compounds 103 Reaction of Dialkyl 1-Alkyl(Aryl)-2-Nitroeth-1-Enyl Phosphonates with Non-Carbon Nucleophiles." Phosphorus, Sulfur, and Silicon and the Related Elements 134, no. 1 (1998): 1–10. http://dx.doi.org/10.1080/10426509808545448.

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11

Lönnberg, Harri. "Migration of hydrogen phosphate, monoalkyl phosphate, dialkyl phosphate and alkyl phosphonate groups between the 2'- and 3'-hydroxyl functions of ribonucleosides and their analogs." Collection of Czechoslovak Chemical Communications 58, s1 (1993): 9–13. http://dx.doi.org/10.1135/cccc1993s009.

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12

Hocková, Dana, Milena Masojídková, and Antonín Holý. "Sonogashira Cross-Coupling in the Synthesis of Acyclic Nucleoside Phosphonates: Preparation of 6-[(Phosphonomethoxy)alkynyl]- and 6-[(Phosphonomethoxy)alkyl]pyrimidines." Collection of Czechoslovak Chemical Communications 70, no. 2 (2005): 247–58. http://dx.doi.org/10.1135/cccc20050247.

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Several 6-[(phosphonomethoxy)alkyl]pyrimidines and 6-[(phosphonomethoxy)alkynyl]pyrimidines were prepared as saturated and unsaturated carba-analogues of antivirally active 2,4-diamino-6-[2-(phosphonomethoxy)ethoxy]pyrimidine. As the key step of their synthesis the Sonogashira cross-coupling reaction was successfully applied. The replacement of the C-O moiety by the C-C bond resulted in the loss of biological activity.

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13

Saeidian, Hamid, Mehran Babri, Atefeh Ramezani, Davood Ashrafi, Mansour Sarabadani, and Mohammad Taghi Naseri. "Gas Chromatography-Mass Spectrometric Studies of O-Alkyl O-2-(N,N-Dialkylamino) Ethyl Alkylphosphonites(Phosphonates) for Chemical Weapons Convention Verification." European Journal of Mass Spectrometry 19, no. 5 (2013): 361–75. http://dx.doi.org/10.1255/ejms.1234.

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14

ENYEDY, Istvan J., Ildiko M. KOVACH, and Akos BENCSURA. "Molecular dynamics study of active-site interactions with tetracoordinate transients in acetylcholinesterase and its mutants." Biochemical Journal 353, no. 3 (2001): 645–53. http://dx.doi.org/10.1042/bj3530645.

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The role of active-site residues in the dealkylation reaction in the PSCS diastereomer of 2-(3,3-dimethylbutyl)methylphosphonofluoridate (soman)-inhibited Torpedo californicaacetylcholinesterase (AChE) was investigated by full-scale molecular dynamics simulations using CHARMM: > 400ps equilibration was followed by 150–200ps production runs with the fully solvated tetracoordinate phosphonate adduct of the wild-type, Trp84Ala and Gly199Gln mutants of AChE. Parallel simulations were carried out with the tetrahedral intermediate formed between serine-200 Oγ of AChE and acetylcholine. We found t

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15

Biavardi, Elisa, and Chiara Massera. "Crystal structure of a host–guest complex between mephedrone hydrochloride and a tetraphosphonate cavitand." Acta Crystallographica Section E Crystallographic Communications 75, no. 2 (2019): 277–83. http://dx.doi.org/10.1107/s2056989019001464.

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A new supramolecular complex (I) between the tetraphosphonate cavitand Tiiii[C3H7,CH3,C6H5] [systematic name: 2,8,14,20-tetrapropyl-5,11,17,23-tetramethyl-6,10:12,16:18,22:24,4-tetrakis(phenylphosphonato-O,O′)resorcin[4]arene] and mephedrone hydrochoride {C11H16NO+·Cl−; systematic name: methyl[1-(4-methylphenyl)-1-oxopropan-2-yl]azanium chloride} has been obtained and characterized both in solution and in the solid state. The complex of general formula (C11H16NO)@Tiiii[C3H7,CH3,C6H5]Cl·CH3OH or C11H16NO+·Cl−·C68H68O12P4·CH3OH, crystallizes in the monoclinic space group P21/c with one lattice m

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16

Nakazawa, Hiroshi, Takashi Kashiwamura, Tsutomu Mizuta, and Katsuhiko Miyoshi. "Reactions of Acyl(phosphonato)palladium Complexes, Pd(PMe3)2{C(O)R'}{P(O)(OR)2}, with an Alkyl Cation, Yielding Cationic Phosphite Complexes, and with Acid Chlorides, Involving Facile Pd-P(O)(OR)2 Bond Cleavage." Organometallics 13, no. 3 (1994): 941–46. http://dx.doi.org/10.1021/om00015a030.

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17

Shevchuk, Michael, and Gerd-Volker Röschenthaler. "Multigram Synthesis of Difluoromethylene Phosphonic and Phosphinic Amides and Phosphine Oxides via Formal [2,3]-Sigmatropic Allyl Phosphite–Allylphosphonate Rearrangement." Synthesis, August 4, 2021. http://dx.doi.org/10.1055/a-1578-2848.

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AbstractWe describe a method for the preparation of CF2-P(V) building blocks and monomers for biological and materials chemistry applications in multigram quantities based on a formal [2,3]-sigmatropic phospha-Wittig rearrangement of readily available fluoroallyl bis(amido)phosphites, amido(aryl)phosphonites, and diarylphosphinites. The proposed intramolecular phosphorylation approach complements the currently prevailing phosphoryldifluoromethylation methods by providing a straightforward access to difluoromethylene phosphonate analogues bearing dialkylamino and/or aryl substituents at the pho

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