Polarography of Halides in Dimethylformamide. VI. The Formation of the Benzhydryl Radical from Benzhydryl Bromide and Its Subsequent Reduction at the Dropping Mercury Electrode
スポンサーリンク
概要
- 論文の詳細を見る
The polarographic behavior of benzhydryl bromide at the dropping mercury electrode was investigated in dimethylformamide at 25degC. It gives three waves, with half-wave potentials at about +0.19, −0.15, and −1.00 V <I>vs.</I> SCE. The first wave is anodic, while the others are cathodic. It was concluded that benzhydryl bromide, prior to being electrolytically reduced, rapidly reacts with the mercury of the cathode according to the following equation:<BR>3(C<SUB>6</SUB>H<SUB>5</SUB>)<SUB>2</SUB>CHBr+Hg→2(C<SUB>6</SUB>H<SUB>5</SUB>)<SUB>2</SUB>CH·+(C<SUB>6</SUB>H<SUB>5</SUB>)<SUB>2</SUB>CH<SUP>+</SUP>+HgBr<SUB>3</SUB><SUP>−</SUP><BR>The first wave given by the bromide was ascribed to the oxidation of HgBr<SUB>3</SUB><SUP>−</SUP> to HgBr<SUB>2</SUB>; the second, to the reduction of HgBr<SUB>3</SUB><SUP>−</SUP> to Hg and Br<SUP>−</SUP>, and the third, to the reduction of (C<SUB>6</SUB>H<SUB>5</SUB>)<SUB>2</SUB>CH· to (C<SUB>6</SUB>H<SUB>5</SUB>)<SUB>2</SUB>CH<SUP>−</SUP>. The cation, (C<SUB>6</SUB>H<SUB>5</SUB>)<SUB>2</SUB>CH<SUP>+</SUP>, was found to give no wave. Such behavior of benzhydryl bromide was discussed in comparison with that of the corresponding chloride, which gives a single wave with a usual two-electron transfer.
- 公益社団法人 日本化学会の論文
著者
-
Date Yoshio
Department of Agricultural Chemistry, Faculty of Agriculture, Shimane University
-
Matsui Yoshihisa
Department of Agricultural Chemistry, Faculty of Agriculture, Shimane University
-
Soga Takashi
Department of Agricultural Chemistry, Shimane University
関連論文
- Iron Chelation by Chlorogenic Acid as a Natural Antioxidant
- Retarding Effects of Cyclodextrins on the Decomposition of Organic Isothiocyanates in an Aqueous Solution
- Effects of Alkali and Alkaline Earth Metals on the Kolbe-Schmitt Reaction
- Oxidative Depolymerization of Chitosan by Hydroxyl Radical
- Regioselective Carboxylation of Phenols with Carbon Dioxide
- Retardation of the Molecular Rotation of p-Nitrophenolate Ion in the Cavity of a Positively Charged Derivative of α-Cyclodextrin by Electrostatic Interactions
- Thermodynamic Parameters for the Complexation of the Pyridinio Derivatives of Cyclodextrins with Some Inorganic Anions in D_2O Solution
- Complexes of Copper(II) with Cyclodextrins
- The Formation and Structure of Copper(II) Complexes with Cyclodextrins in an Alkaline Solution
- Effects of Inorganic Salts on the Dissociation of a Complex of β-Cyclodextrin with an Azo Dye in an Aqueous Solution
- The adsorption of .ALPHA.-and .BETA.-cyclodextrins on the dropping mercury electrode in an aqueous solution.
- Polarography of Halides in Dimethylformamide. III. The Chloride Ion, the Trichloromercurate Ion, and Mercuric Chloride
- Polarography of Halides in Dimethylformamide. II. The Iodide Ion, the Triiodomercurate Ion, and Mercuric Iodide
- Formation of Inclusion Compounds of β-Cyclodextrin with Hydroperoxides
- Molecular mechanical calculation on cyclodextrin inclusion complexes. I. The structures of .ALPHA.-cyclodextrin complexes estimated by van der waals interaction energy calculation.
- Polarography of Halides in Dimethylformamide. IV. The Stability Constants of the Halo Complexes of Mercury (II)
- Polarography of Halides in Dimethylformamide. V. Bromine and the Tribromide Ion
- The microenvironmental effect of cyclodextrin on the acid dissociation of some azo dyes in aqueous solutions.
- The binding and catalytic properties of a positively charged cyclodextrin.
- Polarographic Studies of the Anodic Oxidation of Mercury. II. The Anodic Adsorption Wave of Ethylamine in N,N-Dimethylformamide
- Polarographic Studies of the Anodic Oxidation of Mercury. III. The Adsorption of the Mercury(II) Complexes of Ammonia and Alkylamines on the Mercury Electrode Surface
- Polarography of Halides in Dimethylformamide. VI. The Formation of the Benzhydryl Radical from Benzhydryl Bromide and Its Subsequent Reduction at the Dropping Mercury Electrode
- The retardation of the benzidine rearrangement of hydrazobenzene by cyclodextrins.
- Stabilization of Hydroperoxides by Means of the Formation of Inclusion Compounds with β-Cyclodextrin