Robert Knowles

Professor of Chemistry

Princeton University

United States

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Robert Knowles is a Professor of Chemistry at Princeton University, USA. His research focuses on light-driven chemical processes, including photocatalysis and enantioselective reactions. Recent publications highlight his work on dynamic resolution of amines, functionalizations involving C(sp3)–C(sp3) bonds, and the reactivity of ionic photoredox catalysts. His contributions significantly advance the understanding of electronic effects in free radicals and the use of proton-coupled electron transfer in organic synthesis.

Articles (20)

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2022

Collaborators (12)

Suong T. Nguyen

Tenure-Track Assistant Professor & Head of the Laboratory of Synthetic Polymer Chemistry

École Polytechnique Fédérale de Lausanne

SWITZERLAND

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Justin Earley

Assistant Professor

Arizona State University

UNITED STATES

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Scott Miller

Professor

Yale University

UNITED STATES

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Philip Jeffrey

Princeton University

UNITED STATES

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Sharon Hammes-Schiffer

Sterling Professor of Chemistry

Yale University

UNITED STATES

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Xinzi Zhang

Lecturer and Manager of Integrated Science Curriculum

Princeton University

UNITED STATES

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Huw M. L. Davies

Emory University

UNITED STATES

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James Mayer

Professor

Yale University

UNITED STATES

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Abigail G. Doyle

University of California, Los Angeles

UNITED STATES

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Brett P. Fors

UNITED STATES

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Huiling Shao

UCLA Division of Physical Sciences

UNITED STATES

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Gregory D. Scholes

Princeton University

UNITED STATES

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Robert Knowles

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Articles (20)

Light-Driven Crystallization-Induced Dynamic Resolution of Amines

Light-Driven C(sp3)–C(sp3) Bond Functionalizations Enabled by the PCET Activation of Alcohol O–H Bonds

Quantitative Determination of Electronic Effects in Free Radicals through Open-Shell Hammett Substituent Constants

Ring Expansions of 1,2-Amino Alcohols to Amine Heterocycles Enabled by Proton-Coupled Electron Transfer

Iridium Polypyridyl Carboxylates as Excited-State PCET Catalysts for the Functionalization of Unactivated C–H Bonds

Photocatalyst-Dependent Enantioselectivity in the Light-Driven Deracemization of Cyclic α-Aryl Ketones

Electrostatic Work Causes Unexpected Reactivity in Ionic Photoredox Catalysts in Low Dielectric Constant Solvents

Enantioselective Hydrodifluoroalkylation of Alkenes with Conformationally Tuned Peptidyl Hydrogen Atom Transfer Catalysts

Photoredox-Catalyzed Nucleophilic Aromatic Substitution of Halophenols with Azoles via Oligomeric Phenylene Oxide Radicals

Stereoselective Synthesis of Highly Functionalized Bicyclo[2.1.0]pentanes by Sequential [2 + 1] and [2 + 2] Cycloadditions

Catalytic Asymmetric Hydrogen Atom Transfer: Enantioselective Hydroamination of Alkenes

Singly Reduced Iridium Chromophores: Synthesis, Characterization, and Photochemistry

Isotopic Fractionation as a Mechanistic Probe in Light-Driven C–H Bond Exchange Reactions

Chemical Recycling of Thiol Epoxy Thermosets via Light-Driven C–C Bond Cleavage

Radicals as Exceptional Electron-Withdrawing Groups: Nucleophilic Aromatic Substitution of Halophenols Via Homolysis-Enabled Electronic Activation

Radical Redox Annulations: A General Light-Driven Method for the Synthesis of Saturated Heterocycles

Interference of nuclear wavepackets in a pair of proton transfer reactions

Noncovalent Stabilization of Radical Intermediates in the Enantioselective Hydroamination of Alkenes with Sulfonamides

Reversible Homolysis of a Carbon–Carbon σ-Bond Enabled by Complexation-Induced Bond-Weakening

Contra-Thermodynamic Positional Isomerization of Olefins

Collaborators (12)

Suong T. Nguyen

Justin Earley

Scott Miller

Philip Jeffrey

Sharon Hammes-Schiffer

Xinzi Zhang

Huw M. L. Davies

James Mayer

Abigail G. Doyle

Brett P. Fors

Huiling Shao

Gregory D. Scholes

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