Decarboxylative Coupling ofα-Keto Acids withortho-Phenylenediamines Promoted by an Electrochemical Method in Aqueous Media

2016 ◽  
Vol 358 (12) ◽  
pp. 1975-1981 ◽  
Author(s):  
Hai-Bin Wang ◽  
Jing-Mei Huang
Keyword(s):  
Electrochemical Method ◽  
Aqueous Media ◽  
Keto Acids ◽  
Decarboxylative Coupling

Ag-catalyzed decarboxylative acylation of pyridazines using α-keto acids in aqueous media

2021 ◽  
Vol 62 ◽  
pp. 152691
Author(s):  
Shengqiang Wang ◽  
Xiaobo Xu ◽  
Dapeng Zou ◽  
Qijie Xu
Keyword(s):  
Aqueous Media ◽  
Keto Acids

Direct C-3 alkylation of coumarins via decarboxylative coupling with carboxylic acids

2019 ◽  
Vol 43 (24) ◽  
pp. 9328-9332 ◽  
Author(s):  
Farnaz Jafarpour ◽  
Masoumeh Darvishmolla ◽  
Narges Azaddoost ◽  
Farid Mohaghegh
Keyword(s):  
Carboxylic Acids ◽  
Aqueous Media ◽  
Metal Free ◽  
Decarboxylative Coupling

A metal-free direct alkylation of coumarins using carboxylic acids in aqueous media with a broad substrate scope is devised.

Copper-catalyzed oxidative decarboxylative coupling of α-keto acids and sulfoximines

2017 ◽  
Vol 15 (20) ◽  
pp. 4320-4327 ◽  
Author(s):  
Chaleena Pimpasri ◽  
Ladawan Sumunnee ◽  
Sirilata Yotphan
Keyword(s):  
Keto Acids ◽  
Decarboxylative Coupling

The formation of N-aroylsulfoximines via a copper-catalyzed oxidative decarboxylative coupling of α-keto acids with NH-sulfoximines is reported.

Degradation of chlorophenoxyacid herbicides in aqueous media, using a novel electrochemical method†

1999 ◽  
Vol 55 (5) ◽  
pp. 558-562 ◽  
Author(s):  
Mehmet A Oturan ◽  
Jean-Jacques Aaron ◽  
Nihal Oturan ◽  
Jean Pinson
Keyword(s):  
Electrochemical Method ◽  
Aqueous Media

Formation and Characterization of Dispersed Mixed Iron-titanium Oxide Systems by Electrochemical Method

2020 ◽  
Vol 10 (1) ◽  
pp. 25-36
Author(s):  
Alexander F. Dresvyannikov ◽  
Irina O. Grigoryeva ◽  
Leniza R. Salemgaraeva
Keyword(s):  
Anodic Oxidation ◽  
Electrochemical Method ◽  
Structural Characteristics ◽  
Electrical Contact ◽  
Aqueous Media ◽  
Electrochemical Process ◽  
Oxide System ◽  
Oxidation Products ◽  
Anode Current Density ◽  
Oxide Systems

Aims: Anodic polarization behavior of a combined iron-titanium electrode (two metals in electrical contact with each other) in aqueous solutions containing halide ions (F- and Cl-) was studied. Methods: he joint anodic dissolution of titanium and iron with subsequent thermal treatment makes it possible to obtain precursors of a highly dispersed mixed oxide system Fe2O3-TiO2. The phase and elemental composition and structural characteristics of obtained products were examined using X-ray diffraction and scanning electron microscopy. It has been experimentally confirmed that via changing the anode current density, hydrofluoric acid concentration in electrolyte and ratio of the working surface area of contacting metals, it is possible to effectively control the rate of anodic reactions and phase composition and morphology of anodic oxidation products for iron and titanium components in a combined electrode. Results: The main results of this study are as follows: Electrochemical method for the synthesis of complex dispersed oxide system Fe2O3-TiO2 based on joint anodic oxidation of contacting metals in aqueous media was suggested. Relationships between parameters of the electrochemical process and characteristics of the synthesized oxide system were revealed. Conclusion: By varying the parameters of the electrolysis process, it is possible to prepare complex oxyhydroxides with different ratios of iron and titanium, which makes it possible to synthesize precursors of iron titanates of preset composition and structure.

Decarboxylative Alkynylation of α-Keto Acids and Oxamic Acids in Aqueous Media

2015 ◽  
Vol 17 (12) ◽  
pp. 3054-3057 ◽  
Author(s):  
Hua Wang ◽  
Li−Na Guo ◽  
Shun Wang ◽  
Xin-Hua Duan
Keyword(s):  
Aqueous Media ◽  
Keto Acids

scholarly journals Ultrasound-enhanced Ag-catalyzed decarboxylative coupling between α-keto acids and disulfides for the synthesis of thioesters

2018 ◽  
Vol 49 ◽  
pp. 41-46 ◽  
Author(s):  
Laura Abenante ◽  
Filipe Penteado ◽  
Marcelo M. Vieira ◽  
Gelson Perin ◽  
Diego Alves ◽  
...  
Keyword(s):  
Keto Acids ◽  
Decarboxylative Coupling

ChemInform Abstract: Catalyst-Free Direct Decarboxylative Coupling of α-Keto Acids with Thiols: A Facile Access to Thioesters.

ChemInform ◽  
2015 ◽  
Vol 46 (44) ◽  
pp. no-no
Author(s):  
Kelu Yan ◽  
Daoshan Yang ◽  
Wei Wei ◽  
Jing Zhao ◽  
Yuanyuan Shuai ◽  
...  
Keyword(s):  
Catalyst Free ◽  
Keto Acids ◽  
Decarboxylative Coupling
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