scholarly journals Electrolytic Reduction of Aromatic Carboxylic Acids. VII. Electrolysis of Cinnamic Acid, Aldehyde and Ester at Controlled Potential.

1955 ◽  
Vol 76 (6) ◽  
pp. 631-635 ◽  
Author(s):  
Shin-ichi Ono
Keyword(s):  
Carboxylic Acids ◽  
Cinnamic Acid ◽  
Electrolytic Reduction ◽  
Aromatic Carboxylic Acids ◽  
Controlled Potential

Microbial Formation of Substituted Styrenes

1989 ◽  
Vol 44 (9-10) ◽  
pp. 765-770 ◽  
Author(s):  
Hans-Adolf Arfmann ◽  
Wolf-Rainer Abraham
Keyword(s):  
Carboxylic Acids ◽  
Benzene Ring ◽  
Cinnamic Acid ◽  
Methoxy Group ◽  
Methyl Chloride ◽  
Side Chains ◽  
Cinnamic Acids ◽  
Cinnamic Acid Derivatives ◽  
Aromatic Carboxylic Acids ◽  
High Yields

Various mono- and disubstituted cinnamic acid derivatives and aromatic carboxylic acids with saturated side chains were incubated mainly with Bacillus, Candida, Hansenula, and Saccharomyces strains. The cinnamic acids carrying a hydroxy- and/or a methoxy group at the 3- and/or 4-position of the benzene ring were decarboxylated with high yields. Most of the reactions were terminated within 24 to 48 h. Substitution at other ring positions afforded also decarboxylation, but at much lower yields. Derivatives with other residues like methyl, chloride, or bromide were not transform ed to the respective styrene. None of the saturated aromatic carboxylic acids could be decarboxylated by the strains used.

scholarly journals Electrolytic Reduction of Aromatic Carboxylic Acids. V

1953 ◽  
Vol 74 (11) ◽  
pp. 907-911 ◽  
Author(s):  
Shin-ichi Ono ◽  
Jun-ichi Nakaya
Keyword(s):  
Carboxylic Acids ◽  
Electrolytic Reduction ◽  
Aromatic Carboxylic Acids

Electrolytic reduction of o-nitrobenzyl thiocyanate in buffered solutions on mercury

1985 ◽  
Vol 50 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Jaromír Hlavatý
Keyword(s):  
Acidic Medium ◽  
Reaction Path ◽  
Electrolytic Reduction ◽  
Buffer System ◽  
Height Ratio ◽  
Preparative Electrolysis ◽  
Clear Explanation ◽  
Ec Mechanism ◽  
Controlled Potential

The o-nitrobenzyl thiocyanate (I) behaves differently on the DME and on a large mercury pool electrode. Polarography did not give a sufficiently clear explanation of the reaction mechanism, only the preparative experiments yielded useful results. Whereas polarographic curves in solutions of Britton-Robinson buffer system with 50% by vol. ethanol exhibit two cathodic waves within the pH region 1-12, corresponding according to their height ratio to an uptake of 4 e and 2 e respectively, the controlled potential preparation electrolysis (CPE) and coulometry results indicate a more complicated reaction path. In the CPE carried out at the concentration of I 1 . 10 -2 mol/l the electroreductive splitting of CH2-SCN occurs as the first step. Nitrobenzyl radicals so formed react in the follow-up dimerization resulting in dibenzyl or toluene structures. Simultaneously or at a later stage the completion of the electrolytic reduction of the nitro group proceeds to the hydroxylamino group. In solution of 9 > pH > 1 the CPE of nitro compound I takes place by an ECEC mechanism yielding dibenzodiazocine III, its N-oxide IV and 2,2'-dimethylazoxybenzene (V). In course of preparative electrolysis in strongly acidic medium 2-amino-benzo(l,3)-thiazine-l-oxide (II) is formed by an EC mechanism.

Intercalated Organo-Bentonite as Efficient Biosorbent for Aromatic Carboxylic Acids from Wastewater

2021 ◽  
pp. 116443
Author(s):  
N. Bensid ◽  
R. Zerdoum ◽  
Z. Hattab ◽  
Y. Boutaleb ◽  
M. Bououdina
Keyword(s):  
Carboxylic Acids ◽  
Aromatic Carboxylic Acids
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