Results 81 to 90 of about 229,704 (190)

Polymer brush-supported photoredox catalysis [PDF]

open access: yes
openVisible light organo-photoredox catalysis has demonstrated its enormous potential for enabling challenging chemical reactions while being a cheaper and greener alternative to transition metal-based catalysts.
AVANZINI, ELENA
core  

Double-shelled hollow rods assembled from nitrogen/sulfur-codoped carbon coated indium oxide nanoparticles as excellent photocatalysts

open access: yesNature Communications, 2019
While photoredox catalysis presents exciting avenues for molecular transformations, balancing optimal photochemical and materials properties can be challenging. Here, the authors prepare carbon-coated In2O3 nanoparticles as recoverable photocatalysts for
Liming Sun   +6 more
doaj   +1 more source

Photoredox-Catalyzed Multicomponent Petasis Reaction with Alkyltrifluoroborates

open access: yes, 2019
A redox-neutral alkyl Petasis reaction has been developed that proceeds via photoredox catalysis. A diverse set of primary, secondary, and tertiary alkyltrifluoroborates participate effectively in this reaction through a single-electron transfer ...
Rauful Alam (1286283)   +7 more
core   +1 more source

Organopolymer with dual chromophores and fast charge-transfer properties for sustainable photocatalysis

open access: yesNature Communications, 2019
While photoredox catalysis offers a new dimension to chemical synthesis, there are few heterogeneous organocatalysts for metal-free transformations.
Justin D. Smith   +7 more
doaj   +1 more source

A Multiphoton Single-Electron Reduction of Olefins via Tandem Photoredox Catalysis [PDF]

open access: yes, 2020
Herein we report a visible light multiphoton tandem photoredox catalysis strategy enabling a distinctive mode of olefin activation via a one electron reduction to the corresponding radical anion.
Anastasios, Polyzos   +3 more
core   +3 more sources

Transition metal-free phosphonocarboxylation of alkenes with carbon dioxide via visible-light photoredox catalysis

open access: yesNature Communications, 2019
Phosphonyl and carboxyl groups are valuable functional groups, however their simultaneous incorporation via catalytic difunctionalization of alkenes has not been realized yet.
Qiang Fu   +6 more
doaj   +1 more source

Enantioselective benzylic C–H arylation via photoredox and nickel dual catalysis

open access: yesNature Communications, 2019
Chiral 1,1-diaryl alkanes are important targets in pharmaceutical industry. Here, the authors report report a redox-neutral enantioselective benzylic C−H bond arylation via photoredox/nickel dual catalysis accessing chiral 1,1-diarylalkane compounds ...
Xiaokai Cheng, Huangzhe Lu, Zhan Lu
doaj   +1 more source

Visible-Light Photoredox Catalyzed Formation of Triarylethylenes Using a Low-Cost Photosensitizer

open access: yesPhotochem
Visible-light photoredox catalysis using biacetyl (BA) as a low-cost photosensitizer enables the efficient formation of triarylethylenes (TAEs) via a Mizoroki–Heck-type coupling. The reaction proceeds efficiently in acetonitrile upon blue LED irradiation
Daniel Álvarez-Gutiérrez   +4 more
doaj   +1 more source

Photoredox-Catalyzed Acyl Lactonization of Alkenes with Aldehydes: Synthesis of Acyl Lactones

open access: yes, 2022
An acyl lactonization of alkenes with aldehydes under visible-light photoredox catalysis is described. With the protocol, a broad scope of alkenoic acids and aldehydes could be compatible and good functional group tolerance is obtained.
Wei-Hao Rao (1555087)   +8 more
core   +1 more source

Enantioselective radical conjugate additions driven by a photoactive intramolecular iminium-ion-based EDA complex

open access: yesNature Communications, 2018
In enantioselective catalysis, electron donor–acceptor (EDA) complexes are usually photochemically activated in an intermolecular fashion. Here, the authors report the stereoselective conjugate addition to β-substituted cyclic enones proceeding without ...
Zhong-Yan Cao   +2 more
doaj   +1 more source

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