exhibits a broad substrate scope and excellent functional group tolerance, and affords a series of biologically important 1,3‐benzoxazine derivatives in good to excellent yields. Moreover, the successful late‐stage functionalization of pharmaceutically relevant compounds further renders the approach valuable.
据报道,
对苯醌甲基与六氢-
1,3,5-三嗪发生[4 + 2]-环加成反应。该反应在非常温和的条件下发生(无催化剂,无
配体和无碱),具有广泛的底物范围和出色的官能团耐受性,并提供了一系列
生物学上重要的1,3-苯并恶嗪衍
生物,收率良好至极佳。此外,药物相关化合物的成功后期功能化进一步使该方法有价值。