Formation yields of epoxides and O(3P) atoms from the gas-phase reactions of O3 with a series of alkenes

✍ Scribed by Roger Atkinson; Sara M. Aschmann; Janet Arey; Ernesto C. Tuazon

• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 361 KB
• Volume: 26
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/kin.550260908

✦ Synopsis

Reactions of ozone with propene, 1-butene, cis-2-butene, trans-2-butene, 2,3-dimethyl-2-butene, and 1,3butadiene were carried out in Nz and air diluent at atmospheric pressure and room temperature and, by monitoring the formation of the epoxides andor a carbonyl compound formed from the reactions of O(3P) atoms with these alkenes, the formation yields of O(3P) atoms from the 0 3 reactions were investigated. No evidence for O(3P) atom formation was obtained, and upper limits to O(3P) atom formation yields of <4% for propene, <5% for 1.3-butadiene, and <2% for the other four alkenes were derived. The reaction of 0 3 with 1,3-butadiene led to the direct formation of 3,4-epoxy-l-butene in (2.3 2 0.4)% yield. These data are in agreement with the majority of the literature data and show that O(3P) atom formation is not a significant pathway in 0 3 -alkene reactions, and that epoxide formation only occurs to any significant extent from conjugated dienes.