Title page for etd-0901111-160943


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URN etd-0901111-160943
Author Min-Bin Dai
Author's Email Address No Public.
Statistics This thesis had been viewed 5331 times. Download 952 times.
Department Chemistry
Year 2011
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Reaction of Dichloromethane with Zinc Thiolate
Complexes
Date of Defense 2011-08-30
Page Count 150
Keyword
  • carbon-sulfur bond formation
  • dichloromethane
  • nucleophilicity
  • zinc thiolate complexes
  • thiols
  • Abstract Dichloromethane is one solvent that is used widely in laboratory. It is
    so stable that it seldom reacts with other materials. There are only a few
    reports that involves dichloromehane as a reactant. Previous in our
    laboratory, we discovered a dichloromethane activation product.
    To study the details of the methylene insertion prouct, [(SCH2S)PS]2Zn
    form (Et4N)2 (PS3Zn)2, we used monodentate thiols in different condition
    as models to understand what condition thiols may react with dichloro
    methane. We found out thiols can react with dichloromethane under
    strong base. When there is aromatic ring in a thiol, that thiol will react
    with dichloromethane easily. Adding zinc salts showed that zinc ion is
    an inhibitor in thiolate/dichloromethane reactions.
    We synthesized Tris(3-trimethylsilyl-2-thiophenyl)phosphine [H3SiPS3]
    and SiPS3Zn complex to study the parallel effect of adding bulky silyl
    substitaents on PS3 ligand towards reaction with dichloromethane. Most
    conclusion are similar to that of monodentate thiols. There is one thing
    that differs from the results of monedentate thiols: the SiPS3Zn complex
    does react with dichloromethane.
    Advisory Committee
  • Tsu-Hsin Chang - chair
  • Chin-Neng Hsus - co-chair
  • Yen-Nan Chiang - advisor
  • Files
  • etd-0901111-160943.pdf
  • indicate access worldwide
    Date of Submission 2011-09-01

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