Showing 201 - 207 results of 207 for search '"enantioselective synthesis"', query time: 0.08s Refine Results
  1. 201
  2. 202

    Carbene-catalyzed dynamic kinetic resolution for asymmetric access to phthalidyl esters and benzofuranone derivatives by Majhi, Pankaj Kumar

    Published 2020
    “…In addition, enantioselective modification of hydroxyphthalides containing natural products has also been achieved utilizing this DKR process. Secondly, enantioselective synthesis of 3,3'-disubstituted benzofuran-2(3H)-one derivatives bearing vicinal quaternary stereogenic centers, enabled by N-heterocyclic carbene catalyzed dynamic kinetic resolution process, has been developed. …”
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    Thesis-Doctor of Philosophy
  3. 203

    Part I : Highly enantioselective intermolecular alpha-alkylation of aldehydes with activated alcohols. Part II : Copper-catalyzed stereo- and enantioselective systhesis of organosi... by Zhao, Kai

    Published 2015
    “…Part II focuses on the copper-catalyzed stereo- and enantioselective synthesis of organosilanes: In chapter 3, we introduced a regio- and stereoselective silylation of α,β-acetylenic carbonyl compounds with Me2PhSi–Bpin catalyzed by CuCl/NaOtBu/xantphos system via the activation of Si–B bond, affording a plethora of synthetically important β-silyl-α,β-unsaturated carbonyl compounds in good yields and excellent E/Z selectivities. …”
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    Thesis
  4. 204

    Efficient and Divergent Enantioselective Syntheses of DHPVs and Anti-Inflammatory Effect on IEC-6 Cells by Hyun Su Kim, Sungkyun Chung, Moon-Young Song, Changjin Lim, Hyeyoung Shin, Joonseong Hur, Hyuk Kwon, Young-Ger Suh, Eun-Hee Kim, Dongyun Shin, Seok-Ho Kim

    Published 2020-05-01
    “…Divergent and efficient enantioselective synthesis of (<i>S</i>)- and (<i>R</i>)-DHPV was efficiently achieved by cross-metathesis and Sharpless asymmetric dihydroxylation as a key reaction for four steps in 16% and 14% overall yields, respectively. …”
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    Article
  5. 205

    Stereoselective reactions of arene chromium tricarbonyl complexes by Goodfellow, C

    Published 1989
    “…<p>This thesis describes the application of (arene)Cr(CO)3 methodology to the Stereoselective and enantioselective synthesis of substituted arenes. Chapter one reviews the main methods of preparation and decomplexation of (arene)Cr(CO)<sub>3</sub> complexes and the electronic and steric influences of the Cr(CO)<sub>3</sub> unit on the arene.…”
    Thesis
  6. 206

    Development of novel chiral N-heterocyclic carbenes and synthetic studies towards the total synthesis of gephyronic acid by Chow, Yeong Shenq

    Published 2016
    “…The emphasis of this thesis is placed on the development of novel chiral NHCs to increase the library of chiral NHCs, investigation on the application of NHCs in catalysis and manifestation of its applicability on the enantioselective synthesis of natural products. In the introductory chapter, a general discussion of the classes and synthetic methodologies of NHCs is provided, followed by a highlight of various chiral NHCs that have been reported and their applications as chiral ligands or chiral nucleophilic catalysts in asymmetric catalysis. …”
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    Thesis
  7. 207

    Stereoselective and Economical Methods for Chemical Synthesis of Essential Medicines by Mear, Sarah Jane

    Published 2023
    “…Methods for diastereo- or enantioselective synthesis are highly desirable, for exploration of biological properties of different stereoisomers, or for driving efficiency during drug manufacturing. …”
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    Thesis