作者:Teresa Ortega、Galip Ozer、Scott Gronert、Ihsan Erden
DOI:10.1016/j.tetlet.2020.151779
日期:2020.4
The singlet oxygenation of three polycyclic hydrocarbons, triquinacene, barrelene and homobarrelene was studied. Triquinacene reacted by way of a perepoxide intermediate, transferring an oxygen atom to another triquinacene molecule to give exclusively the mono epoxide. Barrelene, on the other hand, underwent a rare homo-Diels-Alder reaction with 1O2 to give the decomposition product from the initial
研究了三种多环烃,并三苯并菲,桶烯和均戊烯的单重氧合。苯并三甲苯通过过氧化物中间体进行反应,将氧原子转移到另一个并苯三酚分子上,仅得到单环氧化物。另一方面,Barrelene与1O2进行罕见的均Diels-Alder反应,从最初的四环1,2-二氧戊环生成分解产物,生成苯并呋喃。后者与1O2在[2 + 2]环加成中反应,生成不稳定的1,2-二氧杂环丁烷,其坍塌为甲酸2-甲酰基苯基酯。后者是通过正宗苯并呋喃的单重氧合独立合成的。均戊烯以类似方式反应,得到均二戴斯产物,其分解产生酮醛,其在光谱上表征。