Substrate-Selective Catalysis and CCC-Pincer Ligands

Slides:



Advertisements
Similar presentations
METAL CATALYZED ASYMMETRIC REDUCTION
Advertisements

“ !” completely different mechanisms. catalysis: the process by which a catalyst changes the rate and mechanism of a chemical reaction -- a catalyst is…
Organic Chemistry William H. Brown & Christopher S. Foote.
6/1/2015Carbenes en Olefin Metathesis1 Carbenes en carbynes alkene en alkyne metathesis Schrock en Fischer carbene complexes Stable carbenes Cyclopropanation,
Carbenes and Olefin Metathesis Peter H.M. Budzelaar.
6/11/2015Hot Topics and Hypes1 Hot Topics en Hypes in organometallic chemistry.
The d-block Coordination Chemistry. Objectives Must Explain and use the terms ligand/complex/complex ion and ligand substitutions. Should Describe the.
Carmen Nájera Department of Organic Chemistry University of Alicante Alicante (Spain) Cross-Coupling Reactions in Aqueous Media 1 2 nd International Conference.
Colors and Spectroscopy of Transition Metal Complexes.
Redox-Switchable N-Heterocyclic Carbenes and Their Corresponding
HYDROGENATION OF SOME ALKENES WITH NEW N-ACYL BENZOTRIAZOLE-Rh(I) COMPLEX IN IONIC LIQUID MEDIA Hakan ÜNVER1*, Filiz YILMAZ1 1Department of Chemistry,
Low-Valent Iron-Catalyzed Transformations of Unsaturated Hydrocarbons
Abnormal Pincer-Type Carbenes for Functionalization of Hydrocarbons
Organometallic Chemistry Reactions and Catalysis
ENZYMES are proteins that catalyze [start/speed up] chemical reactions
Colors and Spectroscopy of Transition Metal Complexes
New Chemoselective Functionalization of Nitriles and Vinylogous Esters
Superbisor: Yong Huang
Bridging the Gap Between Early and Late-Metal Catalysis: d2 Square-Planar Complexes That Mimic Their d8 Counterparts Adam S. Veige, Department of Chemistry,
Heterogeneous Cu Catalysts in C-N & C-O Coupling Reactions
Novel Water-Soluble N-Heterocyclic Carbene
CCC-Pincer Ligands for Hydrocarbon Functionalization
Discovery of Molecular Oxidation Catalysts Using Metallo-Enzyme Mimicry and Combinatorial Chemistry Stephen B. Colbran & D. Brynn Hibbert, School of Chemistry,
New Robust Tridentate N-Heterocyclic Carbene Ligands for C-H Activation Michael D. Fryzuk, Department of Chemistry, The University of British Columbia.
Development of Catalytic Reactions using Well-Defined Monomeric Cu(I)
Five Slides about Concurrent Tandem Catalysis
Abnormal Pincer-Type Carbenes for Functionalization of Hydrocarbons
Building Enantioselective Ligands: New Frontiers with Oxazolines
Addition-elimination across the M-CCarbene bond
The Scope and Chemical Relevance of Anion- Interactions Involving Aromatics: Computational and Solid-State Studies. Michael Lewis, Department of Chemistry,
Lewis Acid Chemistry at the Edge of Ferrocene
Catalytic Scaffolding Ligands: An Efficient Directing Group Strategy
Enantioselective Nucleophilic Catalysis for the Synthesis of β-Lactams and other Nitrogen Containing Heterocycles from Isocyanates James A. MacKay, Department.
Hammett Parameters with Calculated Values of J
New Catalysis with Nickel Pincer Complexes
Hydrogen bonding peptides as asymmetric organocatalysts
Reporter: Sun Beiqi Supervisor: Prof. Mo Date: 4/8/2016.
Synthesis and Metal Coordination of Phosphacrown Compounds
High Oxidation State, Late Transition Metals Featuring Metal-Ligand Multiple Bonds: Strategies for Sequential C-H Bond Activation and Functionalization.
Dehydrogenation catalysis relevant to biomass conversion to chemicals and fuels. Peter C. Ford, Department of Chemistry and Biochemistry, University of.
Enzyme-Substrate Complex
Efficient Synthesis of Heterocycles with the Aid of Electrophilic
A New Twist on Pincer Complexes for Catalysis John Protasiewicz, Department of Chemistry Case Western Reserve University, Cleveland, Ohio High twist.
New Transition Metal Catalysts for Selective C-H Oxidation Chemistry
Transition Metal-Templated Reduction of Carbon-Fluorine Bonds:
Synthesis and Study of Triazenes and 2-Iminoimidazolines
Palladium(II)-Catalyzed Asymmetric Synthesis of a-Substituted Ketones Daniel P. Becker, Department of Chemistry, Loyola University, Chicago, IL
Thomas Schaub, Marc Backes, and Udo Radius*
N-Heterocyclic Carbenes in Iron-Catalyzed Cross-Coupling Reactions
Au(I)-Catalyzed Rearrangement of Allyl Aryl Ethers
Tunable Ligands for Rhodium-Catalyzed Hydroformylation
Polar Bond Hydrogenation Catalyzed by Iron Complexes
Sigma Interaction Strength Pi Donor Ligands: Mainly oxides and halides.
Colors and Spectroscopy of Transition Metal Complexes
Generation and Kinetic Studies of High-Valent Metal-Oxo Intermediates
Enantioselective Nucleophilic Catalysis for the Synthesis of β-Lactams and other Nitrogen Containing Heterocycles from Isocyanates James A. MacKay, Department.
Development and Utilization of a Library of Water-Soluble P,N Ligands Derived From 1,3,5-Triaza-7-phosphaadamantane (PTA) Donald A. Krogstad, Department.
Novel Organic-Inorganic Hybrid Cage Architectures
The 'Helmet Phthalocyanines': Synthetic and Catalytic Studies on a New Class of Chiral Phthalocyaninato-Metal Complexes Robert W. McGaff, Chemistry Department,
Development of Light-Harvesting Metallopolymers with Tunable Optical and Electronic Properties Manal A. Rawashdeh-Omary, Department of Chemistry and Physics,
Tunable σ-Accepting, Z-Type Ligands for Organometallic Catalysis
Hydrogen bonding peptides as asymmetric organocatalysts
Enantioselective Dearomatization Agents Based on Chiral C2-Symmetric Ligands Joseph M. Keane, Department of Chemistry, Muhlenberg College, Allentown, PA.
Mechanistic Studies on Organogold Complexes.
Hammett Studies of P,N-Chiral Ligands
catalysis: the process by which a catalyst changes the
New silanimine and NSi…H…M agostic complexes for coupling
Synthesis and Characterization of a
Development of Transition Metal Catalysts for
Coordination Studies of a Library of Water-Soluble Bis-Phosphines Derived From 1,3,5-Triaza-7-phosphaadamantane (PTA) Donald A. Krogstad, Department of.
Presentation transcript:

Substrate-Selective Catalysis and CCC-Pincer Ligands Anthony R. Chianese, Department of Chemistry, Colgate University Sendritic, bowl-shaped N-heterocyclic carbene ligands G0-G2 were synthesized to demonstrate substrate specificity based on size and shape in iridium-catalyzed ketone hydrosilylation: Aryl-substituted CCC-pincer ligands were synthesized, and metalation to iridium gives solvated hydridochloride complexes that may be useful for homogeneous catalysis, including C-H functionalization and hydroamination G0 G2 G1 Substrate Specificity X-ray structure: Ar = mesityl