作者:D. E. Pavlyuk、S. Gundala、I. S. Kovalev、D. S. Kopchuk、A. P. Krinochkin、A. V. Budeev、G. V. Zyryanov、P. Venkatapuram、V. L. Rusinov、O. N. Chupakhin
DOI:10.1134/s1070428019030278
日期:2019.3
two methods were studied. According to the first method, diazonium salts derived from anthranilic acids and stabilized by 4-dodecylbenzenesulfonic acid were treated with potassium fluoride in toluene in the presence of 18-crown-6 on heating. The second method involved generation of arynes directly from substituted anthranilic acids by the action of isoamyl nitrite in toluene on heating. The corresponding
研究了通过两种方法原位生成的per(二烯)与1,2-二氢苯和4,5-二甲氧基-1,2-二氢苯(二烯亲和体)的狄尔斯-阿尔德反应。根据第一种方法,在18-冠-6存在下,在甲苯中,用氟化钾在甲苯中用氟化钾处理由邻氨基苯甲酸衍生并由4-十二烷基苯磺酸稳定的重氮盐。第二种方法涉及通过加热加热甲苯中亚硝酸异戊酯的作用,直接由取代的邻氨基苯甲酸生成芳烃。相应的狄尔斯-阿德耳加成物,萘并[1,2,3,4- GHI ]苝和-10,11- dimethoxynaphtho- [1,2,3,4- GHI分离出per],收率高达77%。当由稳定的重氮盐生成芳烃中间体时,产率较高。两种方法产生的4,5-二氟-1,2-脱氢苯和2,3-脱氢萘均不能与per反应。