Effect of metal ions on the electrochemical reduction of some heterocyclic quinones
โ Scribed by Dennis H. Evans; David A. Griffith
- Publisher
- Elsevier Science
- Year
- 1982
- Weight
- 767 KB
- Volume
- 136
- Category
- Article
- ISSN
- 0022-0728
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Controlled potential electroreduction of three pyridazin-3-ones has been investigated in protic medium. Whatever the acidity, the first reduction always takes place at the 4,5-double bond. In an ammoniacal buffer, further reduction leads to the tetrahydro derivative. In acidic medium, reduction of N
Sodium and lithium ions are not reduced at the dropping mercury electrode in hexamethylphosphoric triamide containing 0.05 mol dm-3 tetraethylammonium perchlorate while rubidium and caesium ions show diffusion controlled, l-electron reduction waves. Thereduction of potassium ion is partially kinetic