Chemoselective hydroborative reduction of nitro motifs using a transition-metal-free catalyst

2021 ◽  
Author(s):  
Wubing Yao ◽  
Jiali Wang ◽  
Yinpeng Lou ◽  
Haijian Wu ◽  
Xinxin Qi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Catalytic Reduction ◽  
Value Added ◽  
Metal Free

The chemoselective catalytic reduction of nitro scaffolds to value-added amine functions is desirable but challenging. We established a combined KOtBu/BEt3 catalyst for deoxygenative reduction of nitroarenes, nitro heteroarenes and even...

Transition-metal-free catalytic hydroboration reduction of amides to amines

2020 ◽  
Vol 7 (21) ◽  
pp. 3515-3520
Author(s):  
Wubing Yao ◽  
Jiali Wang ◽  
Aiguo Zhong ◽  
Shiliang Wang ◽  
Yinlin Shao
Keyword(s):  
Transition Metal ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Value Added ◽  
Metal Free

The selective catalytic reduction of amides to value-added amine products is a desirable but challenging transformation.

scholarly journals Transition metal-free catalytic reduction of primary amides using an abnormal NHC based potassium complex: integrating nucleophilicity with Lewis acidic activation

2020 ◽  
Vol 11 (7) ◽  
pp. 1848-1854 ◽  
Author(s):  
Mrinal Bhunia ◽  
Sumeet Ranjan Sahoo ◽  
Arpan Das ◽  
Jasimuddin Ahmed ◽  
Sreejyothi P. ◽  
...  
Keyword(s):  
Transition Metal ◽  
Catalytic Reduction ◽  
Primary Amines ◽  
Ambient Conditions ◽  
Metal Free ◽  
Potassium Complex

An abnormal N-heterocyclic carbene (aNHC) based potassium complex was used as a transition metal-free catalyst for reduction of primary amides to corresponding primary amines under ambient conditions.

ChemInform Abstract: Transition-Metal-Free Catalytic Reduction of Carbon Dioxide

ChemInform ◽  
2014 ◽  
Vol 45 (22) ◽  
pp. no-no
Author(s):  
Frederic-Georges Fontaine ◽  
Marc-Andre Courtemanche ◽  
Marc-Andre Legare
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Catalytic Reduction ◽  
Metal Free

State-of-the-art catechol porphyrin COF catalyst for chemical fixation of carbon dioxide via cyclic carbonates and oxazolidinones

2016 ◽  
Vol 6 (15) ◽  
pp. 6152-6158 ◽  
Author(s):  
Vitthal Saptal ◽  
Digambar Balaji Shinde ◽  
Rahul Banerjee ◽  
Bhalchandra M. Bhanage
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
State Of The Art ◽  
Value Added ◽  
Chemical Fixation ◽  
Cyclic Carbonates ◽  
Metal Free ◽  
Highly Porous ◽  
Fixation Of Carbon Dioxide

A highly porous, crystalline catechol porphyrin COF was synthesized and applied as an organocatalyst for the fixation of carbon dioxide to synthesize value-added chemicals such as cyclic carbonates and oxazolidinones under solvent and transition-metal-free conditions.

scholarly journals Transition-Metal-Free Catalytic Reduction of Carbon Dioxide

2014 ◽  
Vol 20 (11) ◽  
pp. 2990-2996 ◽  
Author(s):  
Frédéric-Georges Fontaine ◽  
Marc-André Courtemanche ◽  
Marc-André Légaré
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Catalytic Reduction ◽  
Metal Free

Deaminative carbonylative thioesterification of activated alkylamines with thiophenols under transition-metal-free conditions

2021 ◽  
Author(s):  
Fengqian Zhao ◽  
Xiao-Feng Wu
Keyword(s):  
Free Radical ◽  
Transition Metal ◽  
Metal Free

A transition-metal-free radical carbonylation of activated alkylamines with thiophenols has been successfully developed. Various thioesters were selectively produced with moderate to good yields.

Regioselective C3-H Trifluoromethylation of 2H-Indazole Under Transition-Metal-Free Photoredox Catalysis

2019 ◽  
Author(s):  
Arumugavel Murugan ◽  
Venkata Nagarjuna Babu ◽  
Nagaraj Sabarinathan ◽  
Sharada Duddu. S
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Practical Approach ◽  
Hypervalent Iodine ◽  
Radical Mechanism ◽  
Photoredox Catalysis ◽  
Metal Free

Here we report a visible-light-promoted metal-free regioselective C3-H trifluoromehtylation reaction that proceeds via radical mechanism and which supported by control experiments. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the present trifluoromethylation reaction and synthesis of a library of trifluoromethylated indazoles.

Selective Oxidation of Alcohols Catalyzed by a Transition Metal-Free System of NHPI/DDQ/NaNO2

2011 ◽  
Vol 32 (1) ◽  
pp. 118-122 ◽  
Author(s):  
Lipeng ZHOU ◽  
Chaofeng ZHANG ◽  
Tao FANG ◽  
Bingbing ZHANG ◽  
Ying WANG ◽  
...  
Keyword(s):  
Transition Metal ◽  
Selective Oxidation ◽  
Free System ◽  
Metal Free ◽  
Oxidation Of Alcohols

Defect engineering and characterization of active sites for efficient electrocatalysis

Nanoscale ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 3327-3345
Author(s):  
Xuecheng Yan ◽  
Linzhou Zhuang ◽  
Zhonghua Zhu ◽  
Xiangdong Yao
Keyword(s):  
Transition Metal ◽  
Active Sites ◽  
Defect Engineering ◽  
Metal Free

This review highlights recent advancements in defect engineering and characterization of both metal-free carbons and transition metal-based electrocatalysts.

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.

Sign in / Sign up

Export Citation Format

Share Document