Solutions of chloranil (CA) in benzene were irradiated in the presence of Moore's hydrocarbon (MH) and 2-norcarene (NC). These reactions brought about four common products, namely 2,3,5,6-tetrachlorohydroquinone (TCH) and three 1 : 1 cycloadducts, whose C7H10 subunits were reorganised in comparison to the skeletons of MH and NC. As the fifth product, a norcar-3-en-2-yl ether of TCH was formed in the
解决方案
氯苯胺(CA)在苯在摩尔碳氢化合物(
MH)存在下进行辐照2-
降冰片烯(NC)。这些反应带来了四个共同的产物,即2,3,5,6-四
氯氢醌(TCH)和三个1:1的环加合物,与
MH和NC的骨架相比,其C 7 H 10亚基被
重组。作为第五种产物,在NC的情况下形成了TCH的正甲-3-烯-2-基醚,而
MH则生成了具有TCH的非对映体双(内-2-
正十八烷基)醚的结构的物质。。对照实验表明,该物质也是由
MH和TCH产生的,无辐射。鉴于已知将酸加到
MH上得到norcaranes取代在位置2和的已知酸催化异构化
MH到NC,似乎很明显,TCH是的光反应的唯一真正的产品CA与
MH。TCH是一种酸,然后不仅吸收了两当量的
MH,提供了所提及的双醚,而且还催化了
MH向NC的重排,后者用作激发CA的底物,产生了上述3:1的环加合物。