Aerobic photooxidative synthesis of 2-aryl-4-quinazolinones from aromatic aldehydes and aminobenzamide using catalytic amounts of molecular iodine

RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63952-63954 ◽  
Author(s):  
Y. Nagasawa ◽  
Y. Matsusaki ◽  
T. Nobuta ◽  
N. Tada ◽  
T. Miura ◽  
...  
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Aromatic Aldehydes ◽  
Catalytic Amount ◽  
Molecular Iodine ◽  
Light Irradiation ◽  
Environmentally Benign ◽  
Synthetic Method

This study reports a safe, mild, and environmentally benign synthetic method toward 2-aryl-4-quinazolinones through a cyclization–oxidation sequence using a catalytic amount of iodine, harmless visible light irradiation, and molecular oxygen.

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.

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).

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.

Metal chlorides-catalyzed selective oxidation of cyclohexane by molecular oxygen under visible light irradiation

2012 ◽  
Vol 286 ◽  
pp. 6-12 ◽  
Author(s):  
Wenfeng Wu ◽  
Xiangling He ◽  
Zaihui Fu ◽  
Yachun Liu ◽  
Yanlong Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Selective Oxidation ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Metal Chlorides

Metal-Free Epoxidation of Alkenes with Molecular Oxygen and Benzaldehyde under Visible Light Irradiation

Synlett ◽  
2009 ◽  
Vol 2009 (18) ◽  
pp. 3024-3026 ◽  
Author(s):  
Akichika Itoh ◽  
Norihiro Tada ◽  
Hiroaki Okubo ◽  
Tsuyoshi Miura
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Metal Free ◽  
Epoxidation Of Alkenes

ChemInform Abstract: Photooxidative Cleavage of Aromatic Alkenes into Aldehydes Using Catalytic Iodine and Molecular Oxygen under Visible Light Irradiation.

ChemInform ◽  
2014 ◽  
Vol 45 (38) ◽  
pp. no-no
Author(s):  
Akitoshi Fujiya ◽  
Atsumasa Kariya ◽  
Tomoya Nobuta ◽  
Norihiro Tada ◽  
Tsuyoshi Miura ◽  
...  
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Light Irradiation

Synergistic cooperative effect of CF3SO2Na and bis(2-butoxyethyl)ether towards selective oxygenation of sulfides with molecular oxygen under visible-light irradiation

2021 ◽  
Author(s):  
Kai-Jian Liu ◽  
Zheng Wang ◽  
Ling-Hui Lu ◽  
Jin-Yang Chen ◽  
Fei Zeng ◽  
...  
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Practical Method ◽  
Cooperative Effect ◽  
Light Irradiation

A practical method for the switchable synthesis of sulfoxides and sulfones through visible-light-initiated CF3SO2Na/2-butoxyethyl ether synergistic catalyzed oxygenation of sulfides was developed.

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