A Novel Synthesis of N-substituted 2-(benzotriazol-1-yl) Acetamides Promoted by Samarium Diiodide

2002 ◽  
Vol 2002 (11) ◽  
pp. 542-543 ◽  
Author(s):  
Weike Su ◽  
Bibo Yang ◽  
Yongshu Li
Keyword(s):  
Samarium Diiodide ◽  
Novel Synthesis ◽  
Neutral Conditions

1-(Chloromethyl)benzotriazole undergo reaction with isocyanates promoted by samarium diiodide to afford N-substituted 2-(benzotriazol-1-yl)acetamides in good yields under mild and neutral conditions.

Samarium Diiodide Induced Reductive Cleavage of the Se–Se Bond in Diselenides: A Novel Synthesis of 3-Substituted-Imidazolidine-2-One-1-Carbonyl Selenoesters

2002 ◽  
Vol 2002 (4) ◽  
pp. 168-169 ◽  
Author(s):  
Weike Su ◽  
Ning Gao ◽  
Yongmin Zhang
Keyword(s):  
Reductive Cleavage ◽  
Samarium Diiodide ◽  
Novel Synthesis ◽  
Neutral Conditions ◽  
Substituted 1

The reduction of diselenides by samarium diiodide led to samarium selenolates (RSeSmI2). These species reacted with 3-substituted-1-chlorocarbonyl-imidazolidin-2-ones to give the corresponding selenoesters in good yields under mild and neutral conditions.

scholarly journals A Novel Synthesis of 1,3-Diketones by Reaction of an α-Bromoketone with Acyl Chlorides Promoted by Gallium Triiodide

1999 ◽  
Vol 23 (11) ◽  
pp. 666-667
Author(s):  
Rener Chen ◽  
Huayue Wu ◽  
Yongmin Zhang
Keyword(s):  
Acyl Chlorides ◽  
Novel Synthesis ◽  
Phenyl Ketone ◽  
Neutral Conditions

Promoted by gallium triiodide, an α-bromoketone, bromomethyl phenyl ketone, is treated with acyl chlorides to synthesize 1,3-diketones in good yields under mild and neutral conditions.

A Self-Trapping, Bipolar Viologen Bromide Electrolyte for Aqueous Redox Flow Batteries

2020 ◽  
Author(s):  
wenda wu ◽  
Jian Luo ◽  
Fang Wang ◽  
Bing Yuan ◽  
Tianbiao Liu
Keyword(s):  
Redox Flow Battery ◽  
Capacity Retention ◽  
Redox Flow Batteries ◽  
Redox Electrolyte ◽  
Charge Process ◽  
Self Trapping ◽  
Flow Batteries ◽  
Total Capacity ◽  
Neutral Conditions ◽  
Low Solubility

Aqueous organic redox flow batteries (AORFBs) have become increasing attractive for scalable energy storage. However, it remains challenging to develop high voltage, powerful AORFBs because of the lack of catholytes with high redox potential. Herein, we report methyl viologen dibromide (<b>[MV]Br<sub>2</sub></b>) as a facile self-trapping, bipolar redox electrolyte material for pH neutral redox flow battery applications. The formation of the <b>[MV](Br<sub>3</sub>)<sub>2</sub></b> complex was computationally predicted and experimentally confirmed. The low solubility <b>[MV](Br<sub>3</sub>)<sub>2</sub></b> complex in the catholyte during the battery charge process not only mitigates the crossover of charged tribromide species (Br<sub>3</sub><sup>-</sup>) and addresses the toxicity concern of volatile bromine simultaneously. A 1.53 V bipolar MV/Br AORFB delivered outstanding battery performance at pH neutral conditions, specifically, 100% total capacity retention, 133 mW/cm<sup>2</sup> power density, and 60% energy efficiency at 40 mA/cm<sup>2</sup>.

Ni(0)-Catalyzed α-Allylic Alkylation of Regular Ketones with 1,3-Dienes under pH and Redox-neutral Conditions

2019 ◽  
Author(s):  
Tiantian Chen ◽  
Yang Yang ◽  
Liyu Xie ◽  
Haijian Yang ◽  
Guangbin Dong ◽  
...  
Keyword(s):  
Oxidative Addition ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Dual Role ◽  
Allylic Alkylation ◽  
Cross Coupling Reaction ◽  
Neutral Conditions

<p>We report a Ni(0)-catalyzed cross coupling reaction between simple ketones and 1,3-dienes. A variety of a-allylic alkylation products were formed in an 1,2-addition manner with excellent regioselectivity. Water was found to significantly accelerate this transformation. A HO-Ni-H species generated from oxidative addition of Ni(0) to H<sub>2</sub>O is proposed to play a “dual role” in activating both the ketone and the diene substrate.</p>

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