Showing 461 - 480 results of 558 for search '"boronic acid"', query time: 0.13s Refine Results
  1. 461

    Organophosphorus-Catalyzed Reductive Functionalization of Nitrocompounds via P(III)/P(V) Redox Couple by Li, Gen

    Published 2022
    “…With the utilization of geometric-distorted organophosphetanes as catalysts and hydrosilanes as terminal reductants, nitro compounds (nitroarenes, nitromethane and nitroalkanes) undergo reductive O-atom transfer reactions involving the conversion of P(III)/P(V)=O. With that, boronic acids were employed as coupling partners to intercept the nitrene reactivity of nitro compounds derived oxazaphosphorane intermediates for direct reductive C–N coupling. …”
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    Thesis
  2. 462

    Rapid synthesis of the Taxol core by Thomas, P

    Published 2019
    “…</p> <p>The second part of this thesis builds on the Rh-catalysed asymmetric coupling of boronic acids (vinyls, benzenes and heteroaromatics) and cyclic allyl chlorides, developed in the Fletcher group. …”
    Thesis
  3. 463

    Water-compatible dynamic covalent bonds based on a boroxine structure by Virginia Valderrey Berciano

    Published 2024-03-01
    “…Boroxines, resulting from the reversible dehydration of boronic acids, have been incorporated as structural units into functional materials and molecular assemblies, but their applicability is restricted to non-aqueous environments owing to their inherent water instability. …”
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    Article
  4. 464

    General suzuki coupling of heteroaryl bromides by using Tri-tert-butylphosphine as a supporting ligand by Zou, Yinjun, Yue, Guizhou, Xu, Jianwei, Zhou, Steve Jianrong

    Published 2014
    “…Different from previous studies, three typical heteroaryl bromides were systematically examined in couplings of various heteroaryl and aryl boronic acids.…”
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    Journal Article
  5. 465

    Preformed Pd(II) Catalysts Based on Monoanionic [N,O] Ligands for Suzuki-Miyaura Cross-Coupling at Low Temperature by Matthew J. Andrews, Sebastian Brunen, Ruaraidh D. McIntosh, Stephen M. Mansell

    Published 2023-01-01
    “…The catalyst also showed good activity across a range of boronic acids and pinacol esters with even boronic acids featuring strong electron-withdrawing groups showing some activity. …”
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    Article
  6. 466

    Reductive cyclization and petasis-like reaction for the synthesis of functionalized γ-lactams by Wu, Peng, Petersen, Michael Åxman, Cohrt, A. Emil, Petersen, Rico, Clausen, Mads H., Nielsen, Thomas E.

    Published 2015
    “…A subsequent Petasis-like reaction (PLR) through nucleophilic additions of boronic acids to intermediate N-acyliminium ions produced substituted γ-lactams. …”
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    Journal Article
  7. 467

    ABOUT THE MECHANISM FOR N2O FORMATION IN CATALYZED REACTION BETWEEN HYDROXYLAMMONIUM AND NITRITE IN WATER, ETHYLENE GLYCOL AND DIOXANE by A. S. Bashmakov, E. P. Dyagileva, D. A. Kurgachev, E. V. Leonteva

    Published 2015-11-01
    “…It was shown that this reaction is catalyzed by boron acid and copper ions. The mechanism for N2O formation and the influence of copper ions on it in water and organic solvents is discussed. …”
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    Article
  8. 468

    Suzuki–Miyaura cross-coupling reaction catalyzed by PEPPSI-type 1,4-Di(2,6-diisopropylphenyl)-1,2,3-triazol-5-ylidene (tzIPr) palladium complex by Huang, Jie, Hong, Jong-Tai, Hong, Soon Hyeok

    Published 2013
    “…The complex showed high activity under mild conditions for the cross-coupling reactions between various types of aryl chlorides and aryl boronic acids regardless of the steric and electronic nature of the substrates.…”
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    Journal Article
  9. 469

    Self-liganded Suzuki-Miyaura coupling for site-selective protein PEGylation. by Dumas, A, Spicer, C, Gao, Z, Takehana, T, Lin, Y, Yasukohchi, T, Davis, B

    Published 2013
    “…Building with PEGs: PEG-boronic acids, in the presence of simple Pd sources, are capable of acting as direct and effective Suzuki reagents in 70-98 % yield. …”
    Journal article
  10. 470

    Estratégias para estudo das correlações de energia livre em acoplamento aril-aril de Suzuki: elucidando ciclos catalíticos através da equação de Hammett by Gilber Ricardo Rosa

    Published 2012-01-01
    “…The system presents NCP pincer palladacycle 1 as a catalyst precursor, which proved to be very efficient in the coupling of various aryl boronic acids with aryl halides in previous studies. …”
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    Article
  11. 471

    First Metal-Free Synthesis of Tetracyclic Pyrido and Pyrazino Thienopyrimidinone Molecules by Mohammed Aounzou, Joana F. Campos, Mohammed Loubidi, Sabine Berteina-Raboin

    Published 2018-05-01
    “…To enlarge the molecular diversity, we studied the Suzuki coupling of 9-chloro-6H-pyrido[1,2-a]pyrido[2′,3′:4,5]thieno[3,2-d]pyrimidin-6-one and several boronic acids were easily introduced.…”
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    Article
  12. 472

    Synthesis of 4-Alkyl-4<i>H</i>-1,2,4-triazole Derivatives by Suzuki Cross-Coupling Reactions and Their Luminescence Properties by Monika Olesiejuk, Agnieszka Kudelko, Marcin Swiatkowski, Rafal Kruszynski

    Published 2019-02-01
    “…The presented methodology comprises of the preparation of bromine-containing 4-alkyl-4<i>H</i>-1,2,4-triazoles and their coupling with different commercially available boronic acids in the presence of ionic liquids or in conventional solvents. …”
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    Article
  13. 473

    Palladium-catalyzed desulfinative cross-couplings by de Gombert, A, Willis, MC

    Published 2020
    “…However, the coupling of 2-pyridine boronic acids has long remained a challenge. In this context, our laboratory has recently reported the use of pyridyl and other heteroaryl sulfinate salts as efficient alternatives to boron reagents. …”
    Journal article
  14. 474
  15. 475
  16. 476

    New methods to synthesise sulfur-containing compounds by Lo, PKT

    Published 2021
    “…</p> <p>Chapter 2 describes the development of a new nickel-catalysed sulfination of (hetero)aryl boronic acids, using DABSO to synthesise aryl sulfinates in situ. …”
    Thesis
  17. 477

    An Umpolung Approach for the Chemoselective Arylation of Selenocysteine in Unprotected Peptides by Cohen, Daniel Tzvi, Zhang, Chi, Pentelute, Bradley L., Buchwald, Stephen Leffler

    Published 2018
    “…This reaction is amenable to a wide range of boronic acids with different biorelevant functional groups and is unique to selenocysteine. …”
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    Article
  18. 478

    Using monovalent phosphorus compounds to form P-C bonds by Ng, Yong Xiang, Mathey, Francois

    Published 2014
    “…This method enables the formation of P[BOND]C bonds through the combination of a wide array of heterocyclic and aryl boronic acids with various electrophilic phosphinidene complexes. …”
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    Journal Article
  19. 479

    An Improved Synthesis of Some 5-Substituted Indolizines Using Regiospecific Lithiation by Eugene V. Babaev, Viktor B. Rybakov, Alexander A. Bush, Alexey G. Kuznetsov

    Published 2005-09-01
    “…The possibility of Suzuki cross- coupling of 5-iodoindolizines and boronic acids was proven.…”
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    Article
  20. 480

    Natural Deep Eutectic Solvents as Sustainable Solvents for Suzuki­–Miyaura Cross-Coupling Reactions Applied to Imidazo-Fused Heterocycles by Pierre-Olivier Delaye, Mélanie Pénichon, Leslie Boudesocque-Delaye, Cécile Enguehard-Gueiffier, Alain Gueiffier

    Published 2018-10-01
    “…The choline chloride/glycerol (1:2, mol/mol) NaDES allowed the functionalisation of diverse positions on the heterocycles with various boronic acids, by using 2.5 mol% of readily available Pd(OAc)2. …”
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    Article