Showing 481 - 500 results of 558 for search '"boronic acid"', query time: 0.14s Refine Results
  1. 481

    Chelating monoborane phosphines: Rational and high-yield synthesis of [(COD)Rh{(eta(2)-BH(3))Ph(2)PCH(2)PPh(2)}][PF(6)] (COD=1,5-cyclooctadiene) by Ingleson, M, Patmore, N, Ruggiero, G, Frost, C, Mahon, M, Willis, M, Weller, A

    Published 2001
    “…Complex 1 is isolated as an air-stable crystalline salt, and its applicability as a catalyst in organic synthesis has been demonstrated in the coupling of boronic acids with enones.…”
    Journal article
  2. 482

    Novel animal-bone-meal-supported palladium as a green and efficient catalyst for Suzuki coupling reaction in water, under sunlight by Yassine Riadi, Mohammed Geesi, Oussama Dehbi, Mohammed A. Bakht, Mohammed Alshammari, Marie-Claude Viaud-Massuarde

    Published 2017-04-01
    “…This palladium has showed a high catalytic activity than tetrakis(triphenylphosphine) palladium (Pd(PPh3)4) in the Suzuki cross-coupling reaction (the reaction of 4-halogenopyridopyrimidine with boronic acids) in water via sunlight as the light source, with no addition of ligands. …”
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    Article
  3. 483

    Copper(I)-catalyzed sulfonylative Suzuki-Miyaura cross-coupling by Willis, M, Chen, Y

    Published 2017
    “…The process provides a single step route to diaryl sulfones from the direct combination of aryl boronic acids, sulfur dioxide and aryl iodides, and represents the first sulfonylative variant of a classic cross-coupling reaction. …”
    Journal article
  4. 484

    A Convenient Synthesis of Diketopyrrolopyrrole Dyes by Vitor A. S. Almodôvar, Augusto C. Tomé

    Published 2021-08-01
    “…The synthesis includes a Suzuki–Miyaura cross-coupling reaction of a bis(4-chlorophenyl)DPP derivative with aryl and hetaryl boronic acids under mild reaction conditions. The new dyes show large Stokes shifts and high fluorescence quantum yields, important features for their potential use in technical and biological applications.…”
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    Article
  5. 485

    Synthesis of Boron-Containing Primary Amines by Sheng-Hsuan Chung, Ting-Ju Lin, Qian-Yu Hu, Chia-Hua Tsai, Po-Shen Pan

    Published 2013-10-01
    “…The prepared Ugi-4CR boronate esters were then successfully converted to the corresponding boronic acids. Finally, the peptoid structures were successfully modified by cross-coupling to aryl/heteroaryl chlorides via a palladium-mediated Suzuki coupling reaction to yield the corresponding derivatives in moderate to good yields.…”
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    Article
  6. 486

    P III /P V =O Catalyzed Cascade Synthesis of N‐Functionalized Azaheterocycles by Nykaza, Trevor V, Li, Gen, Yang, Junyu, Luzung, Michael R, Radosevich, Alexander T

    Published 2021
    “…The method employs a small-ring organophosphorus-based catalyst (1,2,2,3,4,4-hexamethylphosphetane P-oxide) and a hydrosilane reductant to drive the conversion of ortho-functionalized nitroarenes into azaheterocycles through sequential intermolecular reductive C−N cross coupling with boronic acids, followed by intramolecular cyclization. …”
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    Article
  7. 487

    Direct synthesis of highly substituted pyrroles and dihydropyrroles using linear selective hydroacylation reactions by Majhail, MK, Ylioja, PM, Willis, MC

    Published 2016
    “…The hydroacylation reactions can also be combined in a cascade process with a RhI-catalysed Suzuki-type coupling employing aryl boronic acids, providing a three-component assembly of highly substituted pyrroles.…”
    Journal article
  8. 488

    Palladium (0) catalyzed synthesis of thiophene based 1,3,4-oxadiazoles their reactivities and potential nonlinear optical properties by Abbas, Mujahad, Abbas, Komal, Rizwan, Nasir, Rasool, Muhammad Ali, Hashmi, Gulraiz, Ahmad, Umer, Rashid

    Published 2020
    “…Novel thiophene based 1,3,4-oxadiazoles were synthesized via Suzuki cross-coupling of 2-(5-bromothiphen-2-yl)-5-phenyl-1,3,4-oxadiazole with various substituted aryl-boronic acids in significant yields (58-78%). Density functional theory (DFT) investigations were accomplised on novel oxadiazoles (5a-5j) to explore their structural properties. …”
    Article
  9. 489

    Straightforward and rapid Petasis multicomponent reactions in deep eutectic solvent by Najmedin Azizi, Elham Farhadi

    Published 2021-01-01
    “…An efficient and straightforward one-pot three-component Petasis reactions of salicylaldehyde derivatives with various amines and boronic acids in the glycerol/choline chloride-based deep eutectic solvent (DES) were developed. …”
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    Article
  10. 490

    Three-Component Suzuki–Knoevenagel Synthesis of Merocyanine Libraries and Correlation Analyses of Their Oxidation Potentials and Optical Band Gaps by Tim Meyer, Roxanne Krug, Thomas J. J. Müller

    Published 2021-08-01
    “…The Suzuki coupling Knoevenagel condensation one-pot synthesis of boronic acids/esters, (hetero)aromatic bromo aldehydes and methylene active compounds is a highly practical consecutive three-component process to provide substance libraries with 60 donor-π-bridge-acceptor molecules, i.e., merocyanines in a broader sense, in moderate to excellent yield. …”
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    Article
  11. 491

    Highly Luminescent 4<i>H</i>-1,2,4-Triazole Derivatives: Synthesis, Molecular Structure and Photophysical Properties by Monika Olesiejuk, Agnieszka Kudelko, Marcin Świątkowski

    Published 2020-12-01
    “…The described methodology allows one to conduct the coupling reaction with the use of commercially available boronic acids in the presence of conventional solvents or ionic liquids and produced excellent yields. …”
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    Article
  12. 492

    Ultrasound assisted synthesis of 6-flavonyl substituted 1,4-dihydro-benzo[d][1,3]oxazin-2-ones via Suzuki–Miyaura coupling under Pd/C catalysis by Namburi Suresh, Gutta Lakshmi Prasanna, Mandava Venkata Basaveswara Rao, Manojit Pal

    Published 2019-12-01
    “…Pd/C facilitated Suzuki–Miyaura coupling of 2-aryl-3-bromoflavones with 4,4-disubstituted (1,4-dihydro-2-oxo-2H-3,1-benzoxazin-6-yl)boronic acids under ultrasound irradiation. The methodology involving the use of 10%Pd/C-TBAB-K2CO3 system in DMF/H2O afforded corresponding 6-flavonyl substituted 1,4-dihydro-benzo[d][1,3]oxazin-2-ones in good yield within a short reaction time. …”
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    Article
  13. 493

    Recyclable graphene-supported palladium nanocomposites for Suzuki coupling reaction by Upadhyay Praveenkumar Ramprakash, Srivastava Vivek

    Published 2016-04-01
    “…The optimized protocol was applied to a wide range of substituted aryl/hetroaryl halides along with various aryl boronic acids and afforded the corresponding reaction products in good to excellent yield. …”
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    Article
  14. 494

    P(III)/P(V)-Catalyzed Methylamination of Arylboronic Acids and Esters: Reductive C–N Coupling with Nitromethane as a Methylamine Surrogate by Li, Gen, Qin, Ziyang, Radosevich, Alexander T

    Published 2022
    “…This method operates by the action of a small ring organophosphorus-based catalyst (1,2,2,3,4,4-hexamethylphosphetane P-oxide) together with a mild terminal reductant hydrosilane to drive the selective installation of the methylamino group to (hetero)aromatic boronic acids and esters. This method also provides for a unified synthetic approach to isotopically labeled N-methylanilines from various stable isotopologues of nitromethane (i.e., CD3NO2, CH315NO2, and 13CH3NO2), revealing this easy-to-handle compound as a versatile precursor for the direct installation of the methylamino group.…”
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    Article
  15. 495

    Structural basis of metallo-β-lactamase, serine-β-lactamase and penicillin-binding protein inhibition by cyclic boronates by Brem, J, Cain, R, Cahill, S, McDonough, M, Clifton, I, Jiménez-Castellanos, J, Avison, M, Spencer, J, Fishwick, C, Schofield, C

    Published 2016
    “…Pioneering work revealed that acyclic boronic acids can act as 'transition state analogue' inhibitors of nucleophilic serine enzymes, including serine-β-lactamases. …”
    Journal article
  16. 496

    Structural and kinetic studies on beta-lactamase mechanism and inhibition by Cahill, S

    Published 2017
    “…In the work described herein, cyclic boronic acids were explored as a chemotype with inhibitory activity against the two mechanistic classes of beta-lactamase and are shown to be potent inhibitors of both. …”
    Thesis
  17. 497

    Development of Facile and Simple Processes for the Heterogeneous Pd-Catalyzed Ligand-Free Continuous-Flow Suzuki–Miyaura Coupling by Tsuyoshi Yamada, Jing Jiang, Naoya Ito, Kwihwan Park, Hayato Masuda, Chikara Furugen, Moeka Ishida, Seiya Ōtori, Hironao Sajiki

    Published 2020-10-01
    “…A continuous-flow ligand-free Suzuki–Miyaura coupling reaction of (hetero)aryl iodides, bromides, and chlorides with (hetero)aryl boronic acids was developed using cartridges packed with spherical resin (tertiary amine-based chelate resin: WA30)-supported palladium catalysts (7% Pd/WA30). …”
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    Article
  18. 498

    Synthesis and Herbicidal Activity of Phenylpyridines – A New Lead by Peter Schäfer, Gerhard Hamprecht, Michael Puhl, Karl-Otto Westphalen, Cyrill Zagar

    Published 2003-11-01
    “…Their preparation follows Suzuki-type coupling conditions of reactive 2-chloro-pyridines with appropriate 2,5-substituted 4-chloro-phenyl boronic acids. Depending on the nature of substituents in the pyridine, and in particular the phenyl group, a large number of derivatives are readily accessible. …”
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    Article
  19. 499

    A Facile One-Pot Synthesis of New Poly Functionalized Pyrrolotriazoles via a Regioselective Multicomponent Cyclisation and Suzuki–Miyaura Coupling Reactions by Simon Garnier, Kévin Brugemann, Agnieszka Zak, Johnny Vercouillie, Marie Potier-Cartereau, Mathieu Marchivie, Sylvain Routier, Frédéric Buron

    Published 2022-07-01
    “…Palladium-catalyzed cross-coupling conditions were optimized and a representative library of various boronic acids was employed to establish the scope and limitations of the method.…”
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    Article
  20. 500

    Part I: Catalytic asymmetric arylation of esters for profen synthesis. Part II: Fast Suzuki coupling of heteroaryl chlorides by Yang, Junfeng

    Published 2014
    “…Part two describes a new catalytic system for Suzuki-Miyaura coupling of heteroaryl chlorides and heteroayl boronic acids. Most of the major families of heteroaryl chlorides can reached full conversion within minutes to hours at room temperature. …”
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    Thesis