A5032361841- Radical Photochemical Reactions
- Oxidative Organic Chemistry Reactions
- Analytical Chemistry and Chromatography
- Chemical Synthesis and Reactions
- Catalytic C–H Functionalization Methods
- Electrocatalysts for Energy Conversion
- Asymmetric Synthesis and Catalysis
- Crystallization and Solubility Studies
- Molecular Junctions and Nanostructures
- X-ray Diffraction in Crystallography
- CO2 Reduction Techniques and Catalysts
- Electrochemical Analysis and Applications
- Chemical Reaction Mechanisms
- Sulfur-Based Synthesis Techniques
- Chemical Reactions and Isotopes
- Chemical Reactions and Mechanisms
- Beetle Biology and Toxicology Studies
- Microbial Metabolic Engineering and Bioproduction
- DNA and Nucleic Acid Chemistry
- Enzyme Catalysis and Immobilization
- Advanced battery technologies research
- Metal-Catalyzed Oxygenation Mechanisms
- Phytochemical compounds biological activities
- Catalysis for Biomass Conversion
- Microbial Natural Products and Biosynthesis
Max-Planck-Institut für Kohlenforschung
2024-2025
University of Wisconsin–Madison
2019-2023
Madison Group (United States)
2019
Despite the progress made in field of synthetic organic photocatalysis over past decade, use higher wavelengths, especially those deep-red portion electromagnetic spectrum, remains comparatively rare. We have previously disclosed that a well-defined N,C,N-pincer bismuthinidene (1a) can undergo formal oxidative addition into wide range aryl electrophiles upon absorption low-energy red light. In this study, we map out photophysical dynamics 1a and glean insights nature excited state...
Redox reactions are ubiquitous in organic synthesis and intrinsic to electrosynthesis. The language concepts used describe these domains sufficiently different create barriers that hinder broader adoption understanding of electrochemical methods. To bridge gaps, this Synopsis compares chemical redox reactions, including free energy, voltage, kinetic barriers, overpotential. This discussion is intended increase the accessibility electrochemistry for chemists lacking formal training area.
Robust, highly water-soluble quinone derivatives are efficiently prepared by a scalable electrosynthetic protocol employing low-cost commercially available precursors.
Within the emerging field of bismuth redox catalysis, catalytic formation C-C bonds using aryl halides would be highly desirable; yet such a process remains synthetic challenge. Herein, we present chemoselective bismuth-photocatalyzed activation and subsequent coupling (hetero)aryl iodides with pyrrole derivatives to access C(sp
The engineered structures and active sites of enzyme catalysts give rise to high catalytic activity selectivity toward desired reactions. We have employed a biomass-derived difuran compound append N-substituted maleimides with amino acid (glutamic acid) substitution by Diels-Alder reaction mimic the chemical functional groups that comprise site channels in catalysts. difunctionality allows production adducts appending two moieties form difunctional organocatalyst. organocatalyst can be...
A biomass-derived difuran molecule can be converted to difunctional compounds by Diels–Alder reaction with N -substituted maleimides. Acid-catalyzed retro of promote the eradication microorganisms.
Integrated rate equations are straightforward to fit experimental data verify a proposed mechanism and extract kinetic parameters. Such derived for reversible disproportionation/comproportionation reactions with any set of initial concentrations. Extraction forward reverse constants from by fitting the law is demonstrated disproportionation 2,2,6,6-tetramethyl-1-piperidinyl-N-oxyl (TEMPO) under acidic conditions where approach equilibrium observed.
Abstract Within the emerging field of bismuth redox catalysis, catalytic formation C−C bonds using aryl halides would be highly desirable; yet such a process remains synthetic challenge. Herein, we present chemoselective bismuth‐photocatalyzed activation and subsequent coupling (hetero)aryl iodides with pyrrole derivatives to access C(sp 2 )−C(sp ) linkages through C−H functionalization. This unique reactivity is result complex featuring two state‐dependent interactions light, which 1)...
Despite the progress made in field of synthetic organic photocatalysis over last decade, use higher wavelengths, especially those deep-red portion electromagnetic spectrum, remain comparatively rare. We have previously disclosed that a well-defined N,C,N-pincer bismuthinidene (1a) can undergo formal oxidative addition into wide range aryl electrophiles upon absorption low-energy red light. In this study, we map out photophysical dynamics 1a and glean insights nature excited state responsible...
The 1,4-diacyloxylation of 1,3-cyclohexadiene (CHD) affords valuable stereochemically defined scaffolds for natural product and pharmaceutical synthesis. Existing cis-selective diacyloxylation protocols require superstoichiometric quantities benzoquinone (BQ) or MnO
Integrated rate equations are straightforward to fit experimental data verify a proposed mechanism and extract kinetic parameters. Such derived for reversible disproportionation/comproportionation reactions with any set of initial concentrations. Extraction forward reverse constants from by fitting the law demonstrated disproportionation TEMPO (2,2,6,6-tetramethyl-1-piperidinyl-N-oxyl) under acidic conditions where approach equilibrium is observed.
Abstract The 1,4‐diacyloxylation of 1,3‐cyclohexadiene (CHD) affords valuable stereochemically defined scaffolds for natural product and pharmaceutical synthesis. Existing cis ‐selective diacyloxylation protocols require superstoichiometric quantities benzoquinone (BQ) or MnO 2 , which limit process sustainability large‐scale application. In this report, reaction development mechanistic studies are described that overcome these limitations by pairing catalytic BQ with tert ‐butyl...