scholarly journals Visible-Light-Induced Deep Aerobic Oxidation of Alkyl Aromatics

2021 ◽  
Author(s):  
changchengwang wang ◽  
guoxiang zhang ◽  
zhiwei zuo ◽  
rong zeng ◽  
dandan zhai ◽  
...  
Keyword(s):  
Visible Light ◽  
Aerobic Oxidation ◽  
Hydrogen Atom Transfer ◽  
Deep Oxidation ◽  
Benzoic Acids ◽  
Alkyl Benzene ◽  
Oxidation Processes ◽  
Polycarboxylic Acids ◽  
Simple Filtration ◽  
Major Chemical

<b>Oxidation is a major chemical process to produce oxygenated chemicals in both nature and chemical industry. Currently, industrial deep oxidation processes from polyalkyl benzene are major routes to produce benzoic acids and benzene polycarboxylic acids (BPCAs), while to some extent suffering from the energy-intensive and potentially hazardous drawbacks and the sluggish separation issues. In this report, visible-light-induced deep aerobic oxidation of (poly)alkyl benzene to benzene</b><b> (poly)carboxylic acids was developed. CeCl<sub>3</sub> was proved to be an efficient HAT (Hydrogen Atom Transfer)catalyst in the presence of alcohol as both hydrogen and electron shuttle. Dioxygen (O<sub>2</sub>) was found as a sole terminal oxidant. In most cases, pure products were easily isolated by simple filtration, showing the advantages of for scaling up. The reaction provides an ideal way to form valuable fine chemicals from abundant petroleum feedstocks.</b>

scholarly journals Visible-Light-Induced Deep Aerobic Oxidation of Alkyl Aromatics

2021 ◽  
Author(s):  
changchengwang wang ◽  
guoxiang zhang ◽  
zhiwei zuo ◽  
rong zeng ◽  
dandan zhai ◽  
...  
Keyword(s):  
Visible Light ◽  
Aerobic Oxidation ◽  
Hydrogen Atom Transfer ◽  
Deep Oxidation ◽  
Benzoic Acids ◽  
Alkyl Benzene ◽  
Oxidation Processes ◽  
Polycarboxylic Acids ◽  
Simple Filtration ◽  
Major Chemical

<b>Oxidation is a major chemical process to produce oxygenated chemicals in both nature and chemical industry. Currently, industrial deep oxidation processes from polyalkyl benzene are major routes to produce benzoic acids and benzene polycarboxylic acids (BPCAs), while to some extent suffering from the energy-intensive and potentially hazardous drawbacks and the sluggish separation issues. In this report, visible-light-induced deep aerobic oxidation of (poly)alkyl benzene to benzene</b><b> (poly)carboxylic acids was developed. CeCl<sub>3</sub> was proved to be an efficient HAT (Hydrogen Atom Transfer)catalyst in the presence of alcohol as both hydrogen and electron shuttle. Dioxygen (O<sub>2</sub>) was found as a sole terminal oxidant. In most cases, pure products were easily isolated by simple filtration, showing the advantages of for scaling up. The reaction provides an ideal way to form valuable fine chemicals from abundant petroleum feedstocks.</b>

Spatial separation of dual-cocatalysts on bismuth vanadate for selective aerobic oxidation of benzylalcohols to benzaldehydes under visible light irradiation

2018 ◽  
Vol 8 (23) ◽  
pp. 6173-6179 ◽  
Author(s):  
Xu Jin ◽  
Rengui Li ◽  
Yue Zhao ◽  
Xiaodan Liu ◽  
Xiaoqi Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Aerobic Oxidation ◽  
Spatial Separation ◽  
Bismuth Vanadate ◽  
Light Irradiation ◽  
Selective Aerobic Oxidation

Efficient converting of alcohols to aldehydes under visible light can be achieved on BiVO4 crystals with spatial separation of dual-cocatalysts.

Visible light photoredox-catalysed remote C–H functionalisation enabled by 1,5-hydrogen atom transfer (1,5-HAT)

2021 ◽  
Author(s):  
Weisi Guo ◽  
Qian Wang ◽  
Jieping Zhu
Keyword(s):  
Hydrogen Atom ◽  
Visible Light ◽  
Hydrogen Atom Transfer ◽  
Atom Transfer

The generation of heteroatom-centred radicals followed by intramolecular 1,5-HAT and functionalisation of the translocated carbon-centred radical is an efficient way to functionalize chemo- and regio-selectively the remote unactivated C(sp3)–H bond.

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

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.

Visible-Light-Mediated Aerobic Oxidation of Toluene via V2O5@CN Boosting Benzylic C(sp3)–H Bond Activation

2021 ◽  
Author(s):  
Jingjun Li ◽  
Baohui Ren ◽  
Xuyan Yan ◽  
Peixian Li ◽  
Shuiying Gao ◽  
...  
Keyword(s):  
Visible Light ◽  
Bond Activation ◽  
Aerobic Oxidation

Visible-light-responsive lanthanide coordination polymers for highly efficient photocatalytic aerobic oxidation of amines and thiols

2021 ◽  
Author(s):  
Zhifen Guo ◽  
Xin Liu ◽  
Yan Che ◽  
Hongzhu Xing ◽  
Peng Chen
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Coordination Polymers ◽  
Aerobic Oxidation ◽  
Synthesis And Characterization ◽  
Lanthanide Coordination Polymers ◽  
Highly Efficient ◽  
Photocatalytic Reactions ◽  
Energy Issues

Development of visible-light-induced photocatalytic reactions using molecular oxygen as terminal oxidant is intriguing in view of the current environmental and energy issues. We report herein the synthesis and characterization of...

Synthesis of 2,2-difluoro-homoallylic alcohols via ring-opening of gem-difluorocyclopropane and aerobic oxidation by photo-irradiation in the presence of an organic pigment

2018 ◽  
Vol 16 (33) ◽  
pp. 6106-6114 ◽  
Author(s):  
Hiroaki Takenaka ◽  
Yoshihiro Masuhara ◽  
Kent Narita ◽  
Toshiki Nokami ◽  
Toshiyuki Itoh
Keyword(s):  
Visible Light ◽  
Ring Opening ◽  
Aerobic Oxidation ◽  
Organic Dye ◽  
Organic Pigment ◽  
Homoallylic Alcohols ◽  
Ring Opening Reaction

The aerobic oxidation took place after the visible light-mediated ring-opening reaction of gem-difluorocyclopropane in the presence of an organic dye and amine to furnish 2,2-difluoro-homoallylic alcohols in good yields.

Carbonylative Coupling of Simple Alkanes and Alkenes Enabled by Organic Photoredox Catalysis

2021 ◽  
Author(s):  
Ling Chen ◽  
Jing Hou ◽  
Ming Zheng ◽  
Le-Wu Zhan ◽  
Wan-Ying Tang ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Visible Light ◽  
Transfer Process ◽  
Hydrogen Atom Transfer ◽  
Atom Transfer ◽  
Photoredox Catalysis ◽  
Visible Light Driven

A visible-light-driven direct carbonylative coupling of simple alkanes and alkenes via the combination of the hydrogen atom transfer process and photoredox catalysis has been demonstrated. Employing the N-alkoxyazinium salt as...

Merging visible light photocatalysis of dye-sensitized TiO2 with TEMPO: the selective aerobic oxidation of alcohols

2017 ◽  
Vol 7 (21) ◽  
pp. 4955-4963 ◽  
Author(s):  
Yichi Zhang ◽  
Zhan Wang ◽  
Xianjun Lang
Keyword(s):  
Visible Light ◽  
Aerobic Oxidation ◽  
Visible Light Photocatalysis ◽  
Dye Sensitized ◽  
Oxidation Of Alcohols ◽  
Selective Aerobic Oxidation

Efficient visible-light-induced selective aerobic oxidation of alcohols was accomplished by merging the photocatalysis of dye-sensitized TiO2 with TEMPO catalysis.

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