Two Shaughnessy group members gave presentations at the Southeast Undergraduate Research Conference (SURC) hosted by the Department of Chemistry & Biochemistry at The University of Alabama. Tom Gruchala gave an oral talk entitled, "New Palladium Precatalysts for the Coupling of Sterically Demanding Aryl Bromides with Aniline Derivatives." Maddie Plunkett presented a poster entitled, "Trialkylphosphine Derived Palladacycles as Catalysts for the Cross-Dimerization of Terminal Aryl Acetylenes with Terminal Propargyl Alcohols and Amides: An Evaluation of the Ligand Effects."
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Congratulations to Ashley Gilliam who successfully defended her MS thesis entitled, "Using Ketones as Catalyst Activators in Palladium-Catalyzed Cross-Coupling Reactions."
The Shaughnessy group welcomed two new graduate students to the group. Emily Souza earned a BS degree at the University of South Carolina. Her research will focus on the synthesis of bifunctional ligands and their catalytic applications. Jacob Scantland earned his BS degree at Tennessee Tech. His research will focus on synthesis and application of heterobidentate ligands.
A chapter reviewing amine arylation reactions authored by John Hartwig, Kevin Shaughnessy, Shashank Shekar and Rebecca Green was published in the 100th volume of Organic Reactions.
Kevin Shaughnessy was an invited speaker in the Advances in Phosphorous-Based Ligands symposium at the SERMACS meeting in Savannah, GA. The talk was entitled, "Mechanistic studies and catalytic applications of conformationally flexible phosphine ligands." Dr. Shaughnessy also co-organized a symposium entitled, "Catalysis in Aqueous & Alternative Media."
A paper by Dr. Ethan Hu entitled, "Synthesis, Structural Characterization, and Coordination Chemistry of (Trineopentylphosphine)palladium(aryl)bromide Dimer Complexes ([(Np3P)Pd(Ar)Br]2)," was published in Inorganic Chemistry. Co-authors on the paper are, Monica Vasiliu, Deidra Gerlach, Fengrui Qu, Trent Stein, Dr. David Dixon, and Kevin Shaughnessy. The paper describes the structure of the trineopentylphosphine ligand in [(Np3P)Pd(Ar)Br]2 complexes as a function of the steric demand of the aryl group. The trineopentylphosphine is highly flexible allowing it to accommodate other sterically demanding ligands.
A review entitled, "Development of Palladium Precatalysts that Efficiently Generate LPd(0) Active Species," has been published in the Israel Journal of Chemistry. This article was an invited contribution for a special issue honoring John Hartwig and Stephen Buchwald on receiving the Wolf Prize in Chemistry. Kevin Shaughnessy presented a talk entitled, "Generation of active palladium(0) catalyst species from air-stable palladium(II) precatalysts and their application in cross-coupling reactions," at the fall 2019 National Meeting of the American Chemical Society in San Diego, CA.
Maddie Plunkett, Luke LaRochelle, and Alexander Lund have joined the group as undergraduate research students recently. Maddie is a Chemistry and Theater double major. Alexander and Luke are biology majors.
After ten years as department chair, Kevin Shaughnessy is excited to be stepping down to focus on teaching and research.
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