| summary(En) : | Gamma-irradiation of α-pinene in support of aeration results in formation of α-campholenic aldehyde, pinocarvone, pinocarveol, myrtenal and verbenone as major products, and of α-pinene epoxide and sobrerol as minor products. It is suggested that myrtenal, pinocarvone and pinocarveol result from free radical attack on the α-methyl group of α-pinene to give the myrtenyl free radical and its resonance hybrid the pinocarvyl free radical and the corresponding hydroperoxides, and that verbenone results from α-methylenic attack to give the verbenyl free radical and its hydroperoxide. α-Campholenic aldehyde and sobrerol are presumably derived from α-pinene epoxide which is considered to be a secondary product resulting from the action of a peroxide on the double bond of α-pinene. |
13010020.pdf