• Login
    View Item 
    •   Digital Repository Home
    • TCNJ Scholars (Faculty and Student Research)
    • Student Research
    • MUSE (Mentored Undergraduate Summer Experience)
    • View Item
    •   Digital Repository Home
    • TCNJ Scholars (Faculty and Student Research)
    • Student Research
    • MUSE (Mentored Undergraduate Summer Experience)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Base-Free Catalytic Transfer Hydrogenation of Ketones Using Cp*Ir(III)Cl Pyridinesulfonamide Complexes

    Thumbnail
    View/Open
    Poster (399.4Kb)
    Date
    2015
    Author
    Ruff, Andrew
    O’Connor, Abby R.
    Metadata
    Show full item record
    Abstract
    Abstract
    Although examples of iridium complexes containing diamine ligands that catalyze transfer hydrogenation are known, few examples exist of iridium complexes that contain pyridinesulfonamide ligands, and the catalytic activity of such complexes is limited. Therefore, the O'Connor group is interested in exploring new catalysts for transfer hydrogenation using air and moisture tolerant complexes possessing pyridinesulfonamide ligand scaffolds. The synthesis, characterization, and catalysis of Cp*Ir(III)Cl complexes (Cp* = pentamethylcyclopentadienyl) containing pyridinesulfonamide ligands have been achieved. These complexes are active in hydrogen transfer catalysis, as aryl ketones with electron withdrawing and electron donating substituents are effectively reduced to an alcohol at 85oC (80-90% conversion) with 1 mol% of the iridium precatalyst. The electronic nature of the catalyst plays a role in product yield. This portion of the project focuses on an expanded substrate scope to include aliphatic ketones and diones, activated and unactivated alkenes, levulinic acid, and b-ketoesters. Blank trials indicate that basic and halide abstracting additives are not necessary for high catalytic activity. Positional studies show that ortho and meta isomers are reduced the faster than para. Mercury poisoning support homogeneous catalysis. Lastly, preliminary results demonstrate the use of tandem catalysis to form deoxygenated products from electron-rich aryl ketones.
    Description
    Department of Chemistry
    Rights
    File access restricted due to FERPA regulations
    Collections
    • MUSE (Mentored Undergraduate Summer Experience)

    DSpace software copyright © 2002-2016  DuraSpace
    | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    DSpace software copyright © 2002-2016  DuraSpace
    | Send Feedback
    Theme by 
    Atmire NV