The benzoxazine moiety of 7-, 8-, and 9-isopropyl-as well as 6-bromocyclohepta[b][1,4]benzoxazines was easily exchanged with o-aminophenol and its methyl derivatives in methanol or acetic acid. A possible pathway of this novel intermolecular heterocycle exchange reaction is discussed.
7-、8-和9-异丙基以及6-
溴环庚[b][1,4]苯并恶嗪的苯并恶嗪部分在
甲醇或
乙酸中很容易与邻
氨基苯酚及其甲基衍
生物进行交换。讨论了这种新型分子间杂环交换反应的可能途径。