A practical route to azo compounds by metal-free aerobic oxidation of arylhydrazides using an NOx system

2020 ◽  
Vol 7 (6) ◽  
pp. 834-839
Author(s):  
Giwon Jo ◽  
Min Hye Kim ◽  
Jinho Kim
Keyword(s):  
Aerobic Oxidation ◽  
Azo Compounds ◽  
Environment Friendly ◽  
Metal Free ◽  
System P

Metal-free aerobic oxidation of aryl hydrazides catalyzed by NOx was developed for the practical and environment friendly synthesis of azo compounds.

Metal- and radical-free aerobic oxidation of heteroaromatic methanes: an efficient synthesis of heteroaromatic aldehydes

2019 ◽  
Vol 17 (17) ◽  
pp. 4220-4224 ◽  
Author(s):  
Rongzi Ye ◽  
Yuanjie Cao ◽  
Xiaoxiang Xi ◽  
Long Liu ◽  
Tieqiao Chen
Keyword(s):  
Catalytic System ◽  
Aerobic Oxidation ◽  
Methyl Groups ◽  
Efficient Synthesis ◽  
Metal Free ◽  
System P

A metal-free and radical-free synthesis of heteroaromatic aldehydes was developed through aerobic oxidation of methyl groups in an I2/DMSO/O2 catalytic system.

Metal free decarboxylative aminoxylation of carboxylic acids using a biphasic solvent system

2021 ◽  
Vol 19 (1) ◽  
pp. 273-278
Author(s):  
Göran Schulz ◽  
Andreas Kirschning
Keyword(s):  
Carboxylic Acids ◽  
Solvent System ◽  
Radical Scavenger ◽  
Synthetic Approach ◽  
Metal Free ◽  
System P

The oxidative radical decarboxylation of carboxylic acids with TEMPO as radical scavenger in a biphasic solvent system is reported which is successfully used in a new synthetic approach for the antidepressants indatraline.

Transition metal free, green and facile halogenation of ketene dithioacetals using a KX–oxidant system

2021 ◽  
Author(s):  
Vishakha Rai ◽  
Ganesh Shivayogappa Sorabad ◽  
Mahagundappa Rachappa Maddani
Keyword(s):  
Transition Metal ◽  
Ambient Temperature ◽  
Metal Free ◽  
Ketene Dithioacetals ◽  
System P ◽  
Oxidative Halogenation ◽  
Potassium Halide

A facile oxidative halogenation of α-oxo ketene dithioacetals is achieved by using a potassium halide and an oxidant combination under transition metal free conditions at ambient temperature.

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.

Bifunctional metal-free photo-organocatalysts for enantioselective aerobic oxidation of β-dicarbonyl compounds

Tetrahedron ◽  
2018 ◽  
Vol 74 (27) ◽  
pp. 3624-3633 ◽  
Author(s):  
Xiao-fei Tang ◽  
Shi-hao Feng ◽  
Ya-kun Wang ◽  
Fan Yang ◽  
Ze-hao Zheng ◽  
...  
Keyword(s):  
Aerobic Oxidation ◽  
Dicarbonyl Compounds ◽  
Metal Free

Combining Flavin Photocatalysis and Organocatalysis: Metal-Free Aerobic Oxidation of Unactivated Benzylic Substrates

2018 ◽  
Vol 21 (1) ◽  
pp. 114-119 ◽  
Author(s):  
Jan Zelenka ◽  
Eva Svobodová ◽  
Ján Tarábek ◽  
Irena Hoskovcová ◽  
Veronika Boguschová ◽  
...  
Keyword(s):  
Aerobic Oxidation ◽  
Metal Free

Base-promoted aerobic oxidative synthesis of fused 1,3,5-triazines under metal-free conditions

2020 ◽  
Vol 22 (20) ◽  
pp. 6778-6782
Author(s):  
Jinjin Chen ◽  
Zhaozhao Sun ◽  
Fuhong Xiao ◽  
Guo-Jun Deng
Keyword(s):  
Aerobic Oxidation ◽  
Aromatic Aldehydes ◽  
Ammonium Iodide ◽  
Metal Free

An efficient base-promoted aerobic oxidation procedure for the synthesis of fused 1,3,5-triazines from 2-aminobenzimidazoles, aromatic aldehydes, and ammonium iodide under metal-free conditions has been developed.

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