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Filtering by: Creator Alwedi, Embarek Remove constraint Creator: Alwedi, Embarek Academic Affiliation Chemistry Remove constraint Academic Affiliation: Chemistry

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  • Chain extension of boronic esters with stereo- and regio-defined lithiated oxiranes

    Creator:
    Alwedi, Embarek
    Abstract:
    The stereospecific reagent-controlled homologation (StReCH) of boronic esters with putative lithiooxiranes generated in situ from appropriate precursors via sulfoxide-lithium exchange, tin-lithium exchange, and direct lithiation is described with an emphasis on the first lithiation technique which allows for the regio- and stereo-specific generation of all types of lithiooxirane isomer. Transient...
    Resource Type:
    Dissertation

  • Development of Methods for Stereoselective Carbon-Carbon Bond Formation

    Creator:
    Wu, Zhenhua
    Abstract:
    Three distinct methods to achieve the stereoselective synthesis of carbon-carbon bonds were investigated, encompassing: (i) the formation of axially chiral biaryl molecules by enantioselective Suzuki cross-coupling, (ii) the synthesis of α-phenylalkylboronic esters by enantioselective chain extension, and (iii) the stereospecific synthesis of alkenes by eliminative cross-coupling of enantioenriched sp³-hybridized carbenoids....
    Resource Type:
    Dissertation
    Full Text:
    Barsamian, Embarek Alwedi, Xun Sun, Kyoungyim Lee, Somdev Banerjee, Amanda Hoyt, Yang Cao and Kristin