Triarylmethyl chlorides as novel, efficient, and mild organic catalysts for the synthesis of N-sulfonyl imines under neutral conditions

2008 ◽  
Vol 86 (5) ◽  
pp. 456-461 ◽  
Author(s):  
Ali Khalafi-Nezhad ◽  
Abolfath Parhami ◽  
Abdolkarim Zare ◽  
Amir Nasrolahi Shirazi ◽  
Ahmad Reza Moosavi Zare ◽  
...  
Keyword(s):  
Efficient Procedure ◽  
Metal Free ◽  
Highly Efficient ◽  
Neutral Media ◽  
Neutral Conditions ◽  
Organic Catalysts

A highly efficient procedure for the preparation of N-sulfonyl imines via condensation of sulfonamides with aldehydes as well as ketones in the presence of triarylmethyl chlorides as metal-free organo-catalysts at 40 °C is described. The advantages of this class of catalysts over the reported ones are their efficiency and possibility of running reactions in neutral media that makes them suitable for acid-sensitive substrates.Key words: triarylmethyl chloride, N-sulfonyl imine, sulfonamide, aldehyde, ketone.

Highly efficient metal-free organic catalysts to design new Environmentally-friendly starch-based blends

2013 ◽  
Vol 52 (4) ◽  
pp. 493-503 ◽  
Author(s):  
Cedric Samuel ◽  
Yvan Chalamet ◽  
Fernande Boisson ◽  
Jean-Charles Majesté ◽  
Frédéric Becquart ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Metal Free ◽  
Highly Efficient ◽  
Organic Catalysts

Cobalt (oxy)hydroxide nanosheet arrays with exceptional porosity and rich defects as a highly efficient oxygen evolution electrocatalyst under neutral conditions

2019 ◽  
Vol 7 (17) ◽  
pp. 10217-10224 ◽  
Author(s):  
Minqi Chen ◽  
Yanyu Xie ◽  
Jun-Xi Wu ◽  
Huanfeng Huang ◽  
Jun Teng ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Noble Metal ◽  
Free Oxygen ◽  
Metal Free ◽  
Highly Efficient ◽  
Nanosheet Arrays ◽  
Neutral Conditions ◽  
Highly Porous

Highly porous and defective cobalt (oxy)hydroxide nanosheet arrays rank the best cobalt-based noble-metal-free oxygen evolution electrocatalyst under neutral conditions.

Highly efficient metal-free electro-Fenton degradation of organic contaminants on a bifunctional catalyst

2021 ◽  
Vol 416 ◽  
pp. 125859
Author(s):  
Xin Qin ◽  
Kun Zhao ◽  
Xie Quan ◽  
Peike Cao ◽  
Shuo Chen ◽  
...  
Keyword(s):  
Organic Contaminants ◽  
Bifunctional Catalyst ◽  
Metal Free ◽  
Highly Efficient

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

Boron nitride supported NiCoP nanoparticles as noble metal-free catalyst for highly efficient hydrogen generation from ammonia borane

2019 ◽  
Vol 44 (10) ◽  
pp. 4764-4770 ◽  
Author(s):  
Xin Zhou ◽  
Xu-Feng Meng ◽  
Jun-Min Wang ◽  
Ning-Zhao Shang ◽  
Tao Feng ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Noble Metal ◽  
Hydrogen Generation ◽  
Ammonia Borane ◽  
Metal Free ◽  
Highly Efficient

PEG-400 as carbon synthon: highly selective synthesis of quinolines and methylquinolines under metal-free conditions

2021 ◽  
Author(s):  
Chengcheng Ding ◽  
Shichen Li ◽  
Kaili Feng ◽  
Ma Chen
Keyword(s):  
Selective Synthesis ◽  
Efficient Procedure ◽  
Metal Free ◽  
Peg 400

A metal-free, peroxide-free, and efficient procedure for the highly selective synthesis of quinolines and methylquinolines was reported. The main feature of this method was that the same substrate can produce...

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