中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,5-二氯甲苯 | 2,5-dichlorotoluene | 19398-61-9 | C7H6Cl2 | 161.031 |
2,4-二氯甲苯 | 2,4-dichlorotoluene | 95-73-8 | C7H6Cl2 | 161.031 |
3,4-二氯甲苯 | 3,4-Dichlorotoluene | 95-75-0 | C7H6Cl2 | 161.031 |
2-氯甲苯 | 2-Chlorotoluene | 95-49-8 | C7H7Cl | 126.586 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,2,3,4-四氯-5-甲基苯 | 2,3,4,5-tetrachloro-toluene | 1006-32-2 | C7H4Cl4 | 229.921 |
1,2,3,5-四氯-4-甲基苯 | 2,3,4,6-tetrachloro-toluene | 875-40-1 | C7H4Cl4 | 229.921 |
五氯甲苯 | pentachlorotoluene | 877-11-2 | C7H3Cl5 | 264.366 |
—— | (2,4,5-trichlorophenyl)methanol | 19010-52-7 | C7H5Cl3O | 211.475 |
—— | 2,4,5-Trichlorobenzylamin | 2903-49-3 | C7H6Cl3N | 210.49 |
2,4,5-三氯苯甲醛 | 2,4,5-trichlorobenzaldehyde | 35696-87-8 | C7H3Cl3O | 209.459 |
1,2,4-三氯-5-(氯甲基)苯 | 1,2,4-trichloro-5-chloromethyl-benzene | 3955-26-8 | C7H4Cl4 | 229.921 |
1-(溴甲基)-2,4,5-三氯苯 | 2,4,5-trichlorobenzyl bromide | 81778-11-2 | C7H4BrCl3 | 274.372 |
2,5-二氯甲苯 | 2,5-dichlorotoluene | 19398-61-9 | C7H6Cl2 | 161.031 |
—— | 2,4,5-trichlorophenylacetonitrile | 2903-62-0 | C8H4Cl3N | 220.485 |
—— | 1,2,4-trichloro-5-dichloromethyl-benzene | 33429-70-8 | C7H3Cl5 | 264.366 |
2,4,5-三氯-1-(三氯甲基)苯 | 2,4,5-trichloro-1-(trichloromethyl)benzene | 27020-90-2 | C7H2Cl6 | 298.811 |
2-氯甲苯 | 2-Chlorotoluene | 95-49-8 | C7H7Cl | 126.586 |
2,4,5-三氯苯甲酸 | 2,4,5-trichlorobenzoic acid | 50-82-8 | C7H3Cl3O2 | 225.459 |
2,4,5-三氯苯乙酸 | 2,4,5-Trichloro-phenylacetic acid | 2903-64-2 | C8H5Cl3O2 | 239.485 |
The electrochemical reduction of chlorinated arenes with electron-donating substituents, i. e. chlorotoluenes, -anisoles and -phenols, is studied. Preparative electrolyses are run in various solventsupporting electrolytes under potentiostatic and galvanostatic conditions at lead or carbon cathodes. A partial and mostly regioselective hydrodechlorination of compounds with two or more chloro substituents is possible under suitable conditions. The replacement of one single chloro substituent, in particular in a para-position, is difficult. Highly toxic and persistent oligochloro derivatives are thus transformed into less problematic compounds with a low degree of chlorination. The chlorine content of real-life materials such as extracts of soil contaminated with chlorinated phenols and Nitrofen® can also be significantly decreased by electroreduction.