Results 201 to 210 of about 482,822 (233)
Some of the next articles are maybe not open access.

The Photoredox Paradox: Electron and Hole Upconversion as the Hidden Secrets of Photoredox Catalysis.

Journal of the American Chemical Society
Although photoredox catalysis is complex from a mechanistic point of view, it is also often surprisingly efficient. In fact, the quantum efficiency of a puzzlingly large portion of photoredox reactions exceeds 100% (i.e., the measured quantum yields (QYs)
Igor V. Alabugin   +3 more
semanticscholar   +1 more source

Conditionally Activatable Photoredox Catalysis in Living Systems.

Journal of the American Chemical Society, 2021
The transformational effect of photoredox catalytic chemistries has inspired new opportunities, enabling us to interrogate nature in ways that are not possible otherwise and to unveil new biotechnologies in therapy and diagnosis.
Ming-Le Li   +7 more
semanticscholar   +1 more source

Photoredox Catalysis Is On A Roll

Chemical & Engineering News Archive, 2015
The practice of using light to drive catalytic reactions is hotter than ever. The field of photoredox catalysis may trace its origins back to the late 1970s, but its popularity has grown considerably over the past five years. Most recently, David W. C.
openaire   +1 more source

Generating carbyne equivalents with photoredox catalysis

Nature, 2018
Carbon has the unique ability to bind four atoms and form stable tetravalent structures that are prevalent in nature. The lack of one or two valences leads to a set of species-carbocations, carbanions, radicals and carbenes-that is fundamental to our understanding of chemical reactivity.
Zhaofeng, Wang   +3 more
openaire   +2 more sources

Metal‐Free Carbonylations by Photoredox Catalysis

Angewandte Chemie International Edition, 2014
AbstractThe synthesis of benzoates from aryl electrophiles and carbon monoxide is a prime example of a transition‐metal‐catalyzed carbonylation reaction which is widely applied in research and industrial processes. Such reactions proceed in the presence of Pd or Ni catalysts, suitable ligands, and stoichiometric bases.
Michal, Majek, Axel, Jacobi von Wangelin
openaire   +2 more sources

Enantioselective Construction of Quaternary Stereocenters via Cooperative Photoredox/Fe/Chiral Primary Amine Triple Catalysis.

Journal of the American Chemical Society
The catalytic and enantioselective construction of quaternary (all-carbon substituents) stereocenters poses a formidable challenge in organic synthesis due to the hindrance caused by steric factors.
Lian-Jie Li   +7 more
semanticscholar   +1 more source

Desymmetrization-Addition Reaction of Cyclopropenes to Imines via Synergistic Photoredox and Cobalt Catalysis.

Journal of the American Chemical Society
Herein, we designed a reaction for the desymmetrization-addition of cyclopropenes to imines by leveraging the synergy between photoredox and asymmetric cobalt catalysis.
Xiang-Kui He   +5 more
semanticscholar   +1 more source

Photoredox Catalysis for Organic Syntheses

Advanced Synthesis & Catalysis, 2013
AbstractCurrent examples of photoredox catalytic processes for CO, CN, CHal and CC bond formation are described with emphasis on the basic mechanistic scenarios. The focus is on the special aspects of photochemical redox catalysis especially on the electron transfer energetics, the use of electron transfer (ET) sensitizers and mediators as well as ...
Melissa Reckenthäler, Axel G. Griesbeck
openaire   +1 more source

Allylsilane as a versatile handle in photoredox catalysis

Chemical Communications
This review briefly summarizes the utilization of allylsilane in photoredox catalysis. It highlights the underlying mechanisms for the formation of the C–C/C–heteroatom bond with various functionalities in mild conditions with high selectivity.
Nand Lal   +4 more
openaire   +2 more sources

Metallaphotoredox: The Merger of Photoredox and Transition Metal Catalysis

Chemical Reviews, 2022
David W. C. MacMillan   +2 more
exaly  

Home - About - Disclaimer - Privacy