The limiting factor to account for the increased rate of intramolecular reactions between functional groups as opposed to their intermolecular counterparts can and has been explained both by proximity effects and by activation energy. Neither explanation has emerged as the single most important reas
Proximity effect in the oxidation of dithiols with 3-methyllumiflavin
✍ Scribed by Toshiyuki Nagata; Ken Fujimori; Shigeru Oae
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 474 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1042-7163
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✦ Synopsis
Abstract
Rates of oxidation of various dithiols with 3‐methyllumiflavin to afford the corresponding cyclic disulfides have been examined at various pH values in 30% aqueous ethanol at 30°C. 1,3‐Propanedithiol, which affords 1,2‐dithiolane, has been found to be the most reactive among several dithiols tested in this oxidation. Kinetic results clearly show that highly strained 1,2‐dithiethanes are formed as primary products in the oxidation of vic‐dithiols with 3‐methyllumiflavin.
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