Transition‐Metal Free Catalytic Synthesis of Trifluoromethyl Indolines by [4+1] Cycloaddition of Trifluoromethyl Benzoxazinones with Sulfur Ylides

2021 ◽  
Author(s):  
Koki Kawai ◽  
Hiroto Uno ◽  
Daichi Fujimoto ◽  
Norio Shibata
Keyword(s):  
Transition Metal ◽  
Catalytic Synthesis ◽  
Sulfur Ylides ◽  
Metal Free

Sulfur Mediated Allylic C-H Arylation, Epoxidation and Aziridination

2019 ◽  
Author(s):  
Hang Luo ◽  
Gang Hu ◽  
Pingfan Li
Keyword(s):  
Transition Metal ◽  
One Pot ◽  
Sulfur Ylides ◽  
Metal Free ◽  
Arylboronic Acids ◽  
Free Sulfur

Transition-metal-free, sulfur mediated allylic C-H arylation, epoxidation and aziridination were realized through one-pot procedures. The reaction design involved initial addition between olefins and triflic anhydride activated sulfoxides, followed by subsequent reactions of the allylic sulfur ylides generated under basic conditions with arylboronic acids, aldehydes, or aldimines, to give allylic arylation, epoxidation or aziridination products, respectively.<br>

ChemInform Abstract: Transition-Metal-Free Catalytic Synthesis of 1,5-Diaryl-1,2,3-triazoles.

ChemInform ◽  
2011 ◽  
Vol 42 (5) ◽  
pp. no-no
Author(s):  
Sen W. Kwok ◽  
Joseph R. Fotsing ◽  
Rebecca J. Fraser ◽  
Valentin O. Rodionov ◽  
Valery V. Fokin
Keyword(s):  
Transition Metal ◽  
Catalytic Synthesis ◽  
Metal Free

scholarly journals Transition-Metal-Free Catalytic Synthesis of 1,5-Diaryl-1,2,3-triazoles

2010 ◽  
Vol 12 (19) ◽  
pp. 4217-4219 ◽  
Author(s):  
Sen W. Kwok ◽  
Joseph R. Fotsing ◽  
Rebecca J. Fraser ◽  
Valentin O. Rodionov ◽  
Valery V. Fokin
Keyword(s):  
Transition Metal ◽  
Catalytic Synthesis ◽  
Metal Free

scholarly journals Sulfur Mediated Allylic C-H Arylation, Epoxidation and Aziridination

2019 ◽  
Author(s):  
Hang Luo ◽  
Gang Hu ◽  
Pingfan Li
Keyword(s):  
Transition Metal ◽  
One Pot ◽  
Sulfur Ylides ◽  
Metal Free ◽  
Arylboronic Acids ◽  
Free Sulfur

Transition-metal-free, sulfur mediated allylic C-H arylation, epoxidation and aziridination were realized through one-pot procedures. The reaction design involved initial addition between olefins and triflic anhydride activated sulfoxides, followed by subsequent reactions of the allylic sulfur ylides generated under basic conditions with arylboronic acids, aldehydes, or aldimines, to give allylic arylation, epoxidation or aziridination products, respectively.<br>

Sulfur Mediated Allylic C-H Arylation, Epoxidation and Aziridination

2019 ◽  
Author(s):  
Hang Luo ◽  
Gang Hu ◽  
Pingfan Li
Keyword(s):  
Transition Metal ◽  
One Pot ◽  
Sulfur Ylides ◽  
Metal Free ◽  
Arylboronic Acids ◽  
Free Sulfur

Transition-metal-free, sulfur mediated allylic C-H arylation, epoxidation and aziridination were realized through one-pot procedures. The reaction design involved initial addition between olefins and triflic anhydride activated sulfoxides, followed by subsequent reactions of the allylic sulfur ylides generated under basic conditions with arylboronic acids, aldehydes, or aldimines, to give allylic arylation, epoxidation or aziridination products, respectively.<br>

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.

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.

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