2-aminophenol (1) has been established. Four kinds of benzo-fused N-heterocycles with six- to eight-membered ring systems, including N-arylated dibenzo[b,e][1,4]oxazepin-11(5H)-ones (4), acridones (5), 7,12-dihydrodibenzo[b,e][1,4]oxazocin-6H-ones (6) and dibenzo[b,f]azepin-10(11H)-ones (7) have been efficiently synthesized in good to excellent yields, respectively. This process is comprised of the N-arylation
建立了一种有效的方法来组装由
生物质衍生的N-芳基化的
2-氨基苯酚(1)介导的新型和多样化的苯并稠合的N-杂环。具有六元至八元环系统的四种苯并稠合的N-杂环,包括N-芳基化二苯并[ b,e ] [1,4]氧杂氮杂11(5 H)-ones(4),cri啶酮(5),7,12-二氢二苯并[ b,e ] [1,4]
恶唑啉-6 H -ones (6)和二苯并[ b,f ] azepin-10(11 H)-ones(7)已分别以良好至极好的收率有效地合成。该过程包括N-芳基化的2-
氨基
酚(1)与2-卤代
苯甲酸或
苯乙酸之间的N-芳基化反应,从而得到一系列的多官能化的三芳基胺(3),然后进行
化学和区域选择性分子内在温和条件下发生内酯化或酰化。