Abstract
The single functionalization of the parent centropolyindane hydrocarbons fenestrindane (2) and centrohexaindane (3) at the molecular arene periphery has been studied. The monoformylation of 2 and 3 using the Rieche method resulted in the corresponding aldehydes, 7 and 10, in 23% and 35% yield, respectively. The Friedel-Crafts acetylation of 2 furnished 2-acetylfenestrindane (8) in 53% yield, and the Baeyer-Villiger oxidation of 7 followed by hydrolysis resulted in the 2-hydroxyfenestrindane (9) in 72% yield. The results show that electrophilic attack at one of the eight or, respectively, even 12 equivalent positions of 2 and 3 is a viable method for the monofunctionalization of these polycyclic aromatic hydrocarbons.
摘要:研究了对母体多环芳烃fenestrindane(2)和centrohexaindane(3)在分子芳烃周边进行单官能化的方法。使用Rieche方法对2和3进行单甲酰化反应,分别得到对应的醛类化合物7和10,收率分别为23%和35%。对2进行Friedel-Crafts乙酰化反应,得到2-乙酰基fenestrindane(8),收率为53%;对7进行Baeyer-Villiger氧化后水解,得到2-羟基fenestrindane(9),收率为72%。结果表明,对2和3的8个或12个等效位置之一进行亲电攻击是这些多环芳烃进行单官能化的可行方法。