Untersuchungen über die Autoxidation verzweigter Olefine. V. Allgemeine Gesetzmäßigkeiten

✍ Scribed by Dr. W. Bilas; Prof. Dr. W. Pritzkow

• Publisher: John Wiley and Sons
• Year: 1982
• Tongue: English
• Weight: 378 KB
• Volume: 324
• Category: Article
• ISSN: 1615-4150
• DOI: 10.1002/prac.19823240403

✦ Synopsis

Studies on the Autoxidation of Branched‐chain Olefins. V. General Regularities

The rates of oxidation and the yields of epoxides of unbranched and branched olefins are discussed. The rates of oxidation increase with the increasing number of alkyl groups bound at the CC‐double bond. Epoxide yields show no simple dependence on the olefin structure. The allyl radicals formed as intermediates of olefin oxidation are preferably attacked by oxygen either at the less hindered end (in the case of nonbranched olefins) or at the higher substituted end (in the case of branched olefins) of the allylic system. The reasons for these regularities are discussed. Where Z/E‐isomerism is possible, the (E)‐configuration in allylic radicals is more stable than the (Z)‐configuration, and therefore the (E)‐forms of the allylic hydroperoxides are preferably formed.