作者:Ulrich Neuenschwander、Emanuel Meier、Ive Hermans
DOI:10.1002/cssc.201100266
日期:2011.11.18
renewable olefin β‐pinene with molecular oxygen was experimentally and computationally investigated. Peroxyl radicals abstract weakly bonded allylic hydrogen atoms from the substrate, yielding allylic hydroperoxides (i.e., myrtenyl and pinocarvyl hydroperoxide). In addition, peroxyl radicals add to the CC bond of the substrate to form an epoxide. It was found that a relatively high peroxyl radical concentration
实验和计算研究了分子氧对可再生烯烃β-pine烯的热氧化作用。过氧自由基从底物上提取弱结合的烯丙基氢原子,从而产生烯丙基氢过氧化物(即,烯基和过氧戊二烯基氢过氧化物)。此外,过氧自由基会加到底物的CC键上形成环氧化物。结果发现,相对较高的过氧自由基浓度以及较高的过氧交叉反应速率,使得自由基-自由基反应对于这种特定的底物而言非常重要。这些过氧交叉反应中约有60%导致终止(自由基破坏),在10%的转化率下,自由基链的长度约为4。