In the presence as well as in the absence ofacetonitrile the hydrogen evolution reaction was found to follow a Volmer-Heyrovsky mechanism with a minor contribution from the Tafel reaction in parallel. Contribution from surface diffusion between equally spaced step lines were found in both cases. The
The cathodic reduction of o-halonitrobenzenes in acidic propanol/water
โ Scribed by Jairo Marquez; Derek Pletcher
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 355 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0013-4686
No coin nor oath required. For personal study only.
โฆ Synopsis
The electrochemical reduction of three o-halonitrobenzenes at mercury in acidic 50% npropanol/water has been studied and compared with that of nitrobenzene. The objective of this study was to seek conditions for the complete 6e reduction to the corresponding anilines; with the fluoro-and chlorocompounds thiscould be achieved in yields exceeding 75 p; and at current densities above 100 mA cm-* using 0.1 M H,SO, as the electrolyte. With o-bromonitrobenezene the yield was lower because of competing cleavage of the GBr bond.
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