Metal-Free Visible-Light Radical Iodoperfluoroalkylation of Terminal Alkenes and Alkynes

Here we report a visible-light-promoted metal-free regioselective C3-H trifluoromehtylation reaction that proceeds via radical mechanism and which supported by control experiments. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the present trifluoromethylation reaction and synthesis of a library of trifluoromethylated indazoles.

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Metal‐Free and Heterogeneous Photocatalytic Reduction of 4‐Nitroaniline by a Poly(Ethylene Glycol)‐Supported Eosin Dye under Visible‐Light Exposure

ChemCatChem ◽

10.1002/cctc.201900040 ◽

2019 ◽

Vol 11 (14) ◽

pp. 3307-3317

Author(s):

Andreea L. Chibac ◽

Violeta Melinte ◽

Vlasta Brezová ◽

Estelle Renard ◽

Arnaud Brosseau ◽

...

Keyword(s):

Ethylene Glycol ◽

Visible Light ◽

Light Exposure ◽

Photocatalytic Reduction ◽

Poly Ethylene Glycol ◽

Metal Free ◽

Poly Ethylene

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Highly chemoselective deoxygenation of N-heterocyclic N-oxides under transition metal-free conditions

Organic & Biomolecular Chemistry ◽

10.1039/d1ob00260k ◽

2021 ◽

Vol 19 (16) ◽

pp. 3735-3742

Author(s):

Se Hyun Kim ◽

Ju Hyeon An ◽

Jun Hee Lee

Keyword(s):

Transition Metal ◽

Visible Light ◽

Eosin Y ◽

Metal Free ◽

Simple Protocol

Here, we provide an operationally simple protocol for the highly chemoselective deoxygenation of various functionalized N-heterocyclic N-oxides under visible light-mediated photoredox conditions with Na2-eosin Y as an organophotocatalyst.

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Band-gap-energy-adjustable and noble-metal-free modified NiS-Zn Cd1-S for highly efficient visible-light-driven Cr6+ photoreduction in alkaline wastewater

Journal of Physics and Chemistry of Solids ◽

10.1016/j.jpcs.2020.109893 ◽

2021 ◽

Vol 150 ◽

pp. 109893

Author(s):

Linjuan Wang ◽

Ling Zan

Keyword(s):

Visible Light ◽

Band Gap ◽

Noble Metal ◽

Band Gap Energy ◽

Gap Energy ◽

Metal Free ◽

Highly Efficient ◽

Visible Light Driven

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Oxidative Alkylation/Alkynylation of Terminal Alkenes via Alkylaldehyde Decarbonylation and 1,2-Alkynyl Migration

Organic & Biomolecular Chemistry ◽

10.1039/d1ob00212k ◽

2021 ◽

Author(s):

Jiajia Zhang ◽

De Chen ◽

yiqun qin ◽

Wei Deng ◽

Yongyue luo ◽

...

Keyword(s):

Functional Group ◽

Quaternary Carbon ◽

Metal Free ◽

Terminal Alkenes ◽

Oxidative Alkylation

A metal-free oxidative alkene alkylation/alkynylation of 1,4-enyn-3-ols with alkylaldehydes has been achieved, which offers a general access to the challenging quaternary carbon-containing but-3-yn-1-ones. The method features with excellent functional group...

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Metal-free visible-light-induced aerobic oxidation of α-diazoesters leading to α-ketoesters in air

Organic Chemistry Frontiers ◽

10.1039/d0qo01587c ◽

2021 ◽

Author(s):

Ruisheng Liu ◽

Qishun Liu ◽

Haoran Meng ◽

Hongyu Ding ◽

Jindong Hao ◽

...

Keyword(s):

Visible Light ◽

Room Temperature ◽

Aerobic Oxidation ◽

Metal Free

A metal-free and visible-light-induced strategy has been established for the construction of α-ketoesters via aerobic oxidation of α-diazoesters with dioxygen in air at room temperature.

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Visible-Light-Mediated Organoboron-Catalysed Metal-Free Dehydrogenation of N-Heterocycles Using Molecular Oxygen

Green Chemistry ◽

10.1039/d1gc01063h ◽

2021 ◽

Author(s):

Lanfeng Wei ◽

Yu Wei ◽

Jinli Zhang ◽

Liang Xu

Keyword(s):

Visible Light ◽

Molecular Oxygen ◽

The Other ◽

Metal Free ◽

Other Hand

The surge of photocatalytic transformation not only provides unprecedented synthetical methods, but also triggers the enthusiasm for more sustainable photocatalysts. On the other hand, oxygen is an ideal oxidant in...

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Visible-light-promoted sulfonylation of thiols with aryldiazonium and sodium metabisulphite leading to unsymmetrical thiosulfonates

Organic Chemistry Frontiers ◽

10.1039/d1qo00112d ◽

2021 ◽

Author(s):

Yu-Fen Lv ◽

Jinyun Luo ◽

Yuchuan Ma ◽

Qi Dong ◽

Lin He

Keyword(s):

Visible Light ◽

Room Temperature ◽

Metal Free ◽

Sodium Metabisulphite ◽

Three Component Reaction

A new visible-light-mediated protocol has been proposed for the synthesis of thiosulfonates via metal-free sulfonylation of thiols with aryldiazonium and sodium metabisulphite at room temperature. This mild three-component reaction, simply...

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