Metal-Free Amine-Mediated Oxidative Synthesis of Polysubstituted Imidazoles from Aryl Methyl Ketones, Ammonium Iodide or Benzylamine, and Hydrogen Peroxide

2017 ◽  
Vol 6 (8) ◽  
pp. 1104-1109 ◽  
Author(s):  
Chengkou Liu ◽  
Zhao Yang ◽  
Yu Zeng ◽  
Zheng Fang ◽  
Kai Guo
Keyword(s):  
Hydrogen Peroxide ◽  
Ammonium Iodide ◽  
Methyl Ketones ◽  
Metal Free ◽  
Free Amine ◽  
Aryl Methyl

scholarly journals Metal-free and solvent-free synthesis of m-terphenyls through tandem cyclocondensation of aryl methyl ketones with triethyl orthoformate

RSC Advances ◽  
2020 ◽  
Vol 10 (20) ◽  
pp. 12113-12118 ◽  
Author(s):  
Xiaoqin Xiao ◽  
Juan Luo ◽  
Zongjie Gan ◽  
Wengao Jiang ◽  
Qiang Tang
Keyword(s):  
Solvent Free ◽  
Triethyl Orthoformate ◽  
Tandem Reaction ◽  
Methyl Ketones ◽  
One Pot ◽  
Metal Free ◽  
Solvent Free Synthesis ◽  
Aryl Methyl

A facile metal-free and solvent-free benzannulation was developed for the construction of m-terphenyl derivatives starting from aryl methyl ketones and triethyl orthoformate. This is a tandem reaction which merged six steps into one-pot procedure.

scholarly journals A Practical Synthesis of α-Aryl Methyl Ketones via a Transition-Metal-Free Meerwein Arylation.

ChemInform ◽  
2007 ◽  
Vol 38 (28) ◽  
Author(s):  
Carmela Molinaro ◽  
Jeffrey Mowat ◽  
Francis Gosselin ◽  
Paul D. O'Shea ◽  
Jean-Francois Marcoux ◽  
...  
Keyword(s):  
Transition Metal ◽  
Methyl Ketones ◽  
Metal Free ◽  
Practical Synthesis ◽  
Aryl Methyl

Sodium nitrite-promoted aerobic oxidative coupling of aryl methyl ketones with ammonium under metal-free conditions: a facile access to polysubstitution imidazoles

2017 ◽  
Vol 4 (8) ◽  
pp. 1508-1512 ◽  
Author(s):  
Cheng-Kou Liu ◽  
Zhao Yang ◽  
Yu Zeng ◽  
Kai Guo ◽  
Zheng Fang ◽  
...  
Keyword(s):  
Sodium Nitrite ◽  
Oxidative Coupling ◽  
Methyl Ketones ◽  
Metal Free ◽  
Aryl Methyl

A sodium nitrite-promoted aerobic oxidative synthesis of polysubstitution imidazoles from aryl methyl ketones under metal-free conditions has been developed.

scholarly journals Iodide/H2O2 Catalyzed Intramolecular Oxidative Amination for the Synthesis of 3,2′-Pyrrolidinyl Spirooxindoles

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2265 ◽  
Author(s):  
Yu-Ting Gao ◽  
Xiao-Yang Jin ◽  
Qi Liu ◽  
An-Di Liu ◽  
Liang Cheng ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Ammonium Iodide ◽  
Reaction Conditions ◽  
Oxidative Amination ◽  
Metal Free ◽  
High Yields

An ammonium iodide/hydrogen peroxide-mediated intramolecular oxidative amination of 3-aminoalkyl-2-oxindoles was achieved, affording the corresponding 3,2′-pyrrolidinyl spirooxindoles and their 6- or 7-membered analogous in moderate to high yields. This metal-free procedure features very mild reaction conditions, non-toxicity and easily handled hydrogen peroxide as a clean oxidant.

A Practical Synthesis of α-Aryl Methyl Ketones via a Transition-Metal-Free Meerwein Arylation

2007 ◽  
Vol 72 (5) ◽  
pp. 1856-1858 ◽  
Author(s):  
Carmela Molinaro ◽  
Jeffrey Mowat ◽  
Francis Gosselin ◽  
Paul D. O'Shea ◽  
Jean-François Marcoux ◽  
...  
Keyword(s):  
Transition Metal ◽  
Methyl Ketones ◽  
Metal Free ◽  
Practical Synthesis ◽  
Aryl Methyl

scholarly journals Author Correction: A metal-free photocatalyst for highly efficient hydrogen peroxide photoproduction in real seawater

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Qingyao Wu ◽  
Jingjing Cao ◽  
Xiao Wang ◽  
Yan Liu ◽  
Yajie Zhao ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Metal Free ◽  
Highly Efficient

A Correction to this paper has been published: https://doi.org/10.1038/s41467-021-21490-z

Hydrogen Peroxide Generation with 100% Faradaic Efficiency on Metal-Free Carbon Black

ACS Catalysis ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 2454-2459
Author(s):  
Zhe Wang ◽  
Qin-Kun Li ◽  
Chenhao Zhang ◽  
Zhihua Cheng ◽  
Weiyin Chen ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Black ◽  
Free Carbon ◽  
Faradaic Efficiency ◽  
Metal Free ◽  
Hydrogen Peroxide Generation

scholarly journals A multistep continuous flow synthesis machine for the preparation of pyrazoles via a metal-free amine-redox process

2016 ◽  
Vol 1 (1) ◽  
pp. 101-105 ◽  
Author(s):  
Jian-Siang Poh ◽  
Duncan L. Browne ◽  
Steven V. Ley
Keyword(s):  
Continuous Flow ◽  
Redox Process ◽  
Flow Synthesis ◽  
Metal Free ◽  
Free Amine

A versatile multistep continuous flow setup is reported for the four-step conversion of anilines into pyrazole products.

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