• Login
    Search 
    •   Home
    • Research
    • Articles
    • Search
    •   Home
    • Research
    • Articles
    • Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Filter by Category

    AuthorCasals-Cruañas, Eric (1)
    Cavallo, Luigi (1)
    Lei, Peng (1)Li, Guangchen (1)Nolan, Steven P. (1)View MoreDepartmentChemical Science Program (1)KAUST Catalysis Center (KCC) (1)Physical Sciences and Engineering (PSE) Division (1)JournalChemCatChem (1)KAUST Grant Number
    OSR-2015-CCF-1974-03 (1)
    PublisherWiley (1)Subjectamides (1)cross-coupling reactions (1)
    density functional calculations (1)
    palladium (1)reaction mechanisms (1)View MoreTypeArticle (1)Year (Issue Date)2018 (1)Item AvailabilityMetadata Only (1)

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguidePlumX LibguideSubmit an Item

    Statistics

    Display statistics
     

    Search

    Show Advanced FiltersHide Advanced Filters

    Filters

    Now showing items 1-1 of 1

    • List view
    • Grid view
    • Sort Options:
    • Relevance
    • Title Asc
    • Title Desc
    • Issue Date Asc
    • Issue Date Desc
    • Submit Date Asc
    • Submit Date Desc
    • Results Per Page:
    • 5
    • 10
    • 20
    • 40
    • 60
    • 80
    • 100

    • 1CSV
    • 1RefMan
    • 1EndNote
    • 1BibTex
    • Selective Export
    • Select All
    • Help
    Thumbnail

    Mechanistic Study of Suzuki-Miyaura Cross-Coupling Reactions of Amides Mediated by [Pd(NHC)(allyl)Cl] Precatalysts

    Li, Guangchen; Lei, Peng; Szostak, Michal; Casals-Cruañas, Eric; Poater, Albert; Cavallo, Luigi; Nolan, Steven P. (ChemCatChem, Wiley, 2018-05-16) [Article]
    We report a combined experimental and computational investigation of the Suzuki–Miyaura cross-coupling of amides enabled by [Pd(NHC)(allyl)Cl] precatalysts. Most crucially, mechanistic details pertaining to the Pd/NHC catalytic cycle were elucidated by computational methods. Mechanistic insights shed light on the role of each ligand about the metal. Sterics play a key role in the initial activation of the catalyst. As a key insight, we have shown that water participates in the activation of the Pd-NHC catalytic system. Easier activation has led to effect room temperature cross-coupling of a broad range of amides through selective N−C bond scission under the mildest conditions reported to date. The use of sterically hindered [Pd(IPr*)(cin)Cl] reported herein for the first time in the amide cross-coupling indicates that increasing flexible steric bulk of the isopropyl wingtip groups of the NHC ligand provides a modular scaffold for promoting amide cross-coupling in high yields. The precatalytic pathway involving both NHC ligands as well as the catalytic cycle beginning from the Pd species are discussed. The mechanistic details provide insight into the amide bond twist (distortion) that leads to N−C cross-coupling reactions and is required for the efficient N−C bond activation.
    DSpace software copyright © 2002-2019  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.