Visible light-promoted copper catalyzed regioselective acetamidation of terminal alkynes by arylamines

2020 ◽  
Vol 22 (4) ◽  
pp. 1164-1170 ◽  
Author(s):  
V. Kishore Kumar Pampana ◽  
Arunachalam Sagadevan ◽  
Ayyakkannu Ragupathi ◽  
Kuo Chu Hwang
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Terminal Alkynes

Herein, we describe a copper photoredox catalyzed synthesis of acetamide via regioselective C–N coupling of arylamines with terminal alkynes using molecular oxygen (O2) as an oxidant at room temperature under visible light irradiation (47 examples).

Visible light-induced aerobic oxidation of diarylalkynes to α-diketones catalyzed by copper-superoxo at room temperature

2020 ◽  
Vol 22 (14) ◽  
pp. 4426-4432 ◽  
Author(s):  
Vaibhav Pramod Charpe ◽  
Arunachalam Sagadevan ◽  
Kuo Chu Hwang
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Aerobic Oxidation ◽  
Low Energy ◽  
Light Irradiation ◽  
Environmentally Benign ◽  
Chloride Salt ◽  
Feasible Method

We demonstrate an environmentally benign and economically feasible method for the oxidation of stable diarylalkynes to diketones at room temperature using the inexpensive copper(ii) chloride salt and molecular oxygen under low energy visible light irradiation.

In2S3/BiOI composites boost visible-light photocatalytic degradation of tetracycline hydrochloride

CrystEngComm ◽  
2021 ◽  
Author(s):  
Panbing Hu ◽  
Yanmei Xin ◽  
Congfei Yao ◽  
Yuqing Miao
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Tetracycline Hydrochloride ◽  
Structure And Morphology ◽  
Morphology Characterization ◽  
Visible Light Photocatalytic

The In2S3/BiOI composites were synthesized at room temperature which significantly improved the photocatalytic degradation performance of tetracycline hydrochloride (TC) under visible light irradiation. Structure and morphology characterization have been performed...

Study on formaldehyde gas-sensing of In2O3-sensitized ZnO nanoflowers under visible light irradiation at room temperature

2012 ◽  
Vol 22 (25) ◽  
pp. 12915 ◽  
Author(s):  
Lina Han ◽  
Dejun Wang ◽  
Jiabao Cui ◽  
Liping Chen ◽  
Tengfei Jiang ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Gas Sensing ◽  
Light Irradiation

l-Asparagine-assisted synthesis of flower-like β-Bi2O3 and its photocatalytic performance for the degradation of 4-phenylphenol under visible-light irradiation

RSC Advances ◽  
2015 ◽  
Vol 5 (91) ◽  
pp. 74977-74985 ◽  
Author(s):  
Xin Xiao ◽  
Shunheng Tu ◽  
Chunxia Zheng ◽  
Huan Zhong ◽  
Xiaoxi Zuo ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Atmospheric Pressure ◽  
Room Temperature ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Temperature Range

By introducing l-asparagine as a ligand, a flower-like precursor of Bi2O3 was prepared by a simple reflux process under atmospheric pressure. β-Bi2O3 was then conveniently obtained by decomposing the precursor and stabilized in a temperature range from room temperature to 420 °C due to the surface-coordination effects of CO32− derived from l-asparagine.

A metal-free route to alkynyl sulfones under photoinduced conditions with the insertion of sulfur dioxide

2020 ◽  
Vol 22 (6) ◽  
pp. 1906-1910 ◽  
Author(s):  
Xinxing Gong ◽  
Min Yang ◽  
Jin-Biao Liu ◽  
Fu-Sheng He ◽  
Xiaona Fan ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Metal Free

A metal-free route to alkynyl sulfones under photoinduced conditions is accomplished, starting from 4-alkyl Hantzsch esters, sulfur dioxide, and alkynyl bromides under visible light irradiation at room temperature.

Electrochemical conversion of bulk platinum into platinum single-atom sites for the hydrogen evolution reaction

2020 ◽  
Vol 8 (21) ◽  
pp. 10755-10760 ◽  
Author(s):  
Zhiyuan Wang ◽  
Jia Yang ◽  
Jie Gan ◽  
Wenxing Chen ◽  
Fangyao Zhou ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Single Atom ◽  
Carbon Paper ◽  
Electrochemical Conversion ◽  
Excellent Activity

An electro-filtration strategy is used to access a Pt single-atom sites catalyst on graphite carbon paper at room temperature from Pt foil, assisted by a GOM membrane. It exhibits excellent activity and stability towards HER (with CdS) under visible-light irradiation.

Photopolymerization of OCDMA Dimetacrylate Initiated by 3,5-Di-tert-Butyl-o- Quinone and its Bis-O-Benzoquinone

2020 ◽  
Vol 869 ◽  
pp. 129-134
Author(s):  
Elnara Zhiganshina ◽  
Maxim Arsenyev ◽  
Alexey Konev ◽  
Yuri Chechet ◽  
Sergey Chesnokov
Keyword(s):  
Visible Light ◽  
Kinetic Parameters ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
High Stability ◽  
Spectral Characteristics ◽  
Argon Atmosphere ◽  
Light Irradiation ◽  
Long Time

The reactivity of 3,5-di-tert-butyl-o-benzoquinone and its bis-o-benzoquinone derivative in photoreduction reaction and polymerization of dimethacrylate (OCDMA) (in bulk and in the presence of 1-butanol) with using of them as photoinitiators under visible light irradiation under argon atmosphere or air were investigated. It was found that the kinetic parameters of the bis-o-quinone photoreactions have low sensitive to the presence of molecular oxygen. The high stability of the spectral characteristics of resulting polymers based on bis-o-quinones compositions for the long time was established.

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