Aluminium Chloride–Catalyzed Claisen Rearrangement: Synthesis of Polyheterocycles Containing Oxygen, Nitrogen, and Sulfur
作者:K. C. Majumdar、R. Islam、S. Alam
DOI:10.1080/00397910701820418
日期:2008.2.13
Abstract Synthesis of 1,8‐naphthyridine‐annulated polyheterocycles containing oxygen, nitrogen, and sulfur has been achieved by thionation and sequential Claisen rearrangement of 4‐(4′‐aryloxybut‐2′‐ynyloxy)‐1‐phenyl[1,8]‐naphthyridin‐2‐ones first by heating in 1,2‐dichlorobenzene for 1–2 h and then by anhydrous AlCl3‐catalyzed Claisen rearrangement in dichloromethane for 1 h.
摘要 4-(4'-芳氧基丁-2'-炔氧基)-1-苯基的硫化和连续克莱森重排合成了含氧、氮和硫的1,8-萘啶环化聚杂环[1,8] -naphthyridin-2-ones 首先在 1,2-二氯苯中加热 1-2 小时,然后在二氯甲烷中通过无水 AlCl3 催化的克莱森重排反应 1 小时。