Mesoporous Poly(melamine-formaldehyde): A Green and Recyclable Heterogeneous Organocatalyst for the Synthesis of Benzoxazoles and Benzothiazoles Using Dioxygen as Oxidant
作者:Daoshan Yang、Peng Liu、Ning Zhang、Wei Wei、Mingbo Yue、Jinmao You、Hua Wang
DOI:10.1002/cctc.201402628
日期:2014.12
simple, highly efficient, and sustainable strategy for the synthesis of benzoxazole and benzothiazole derivatives was developed by using inexpensive, green, readily available, and recyclable mesoporous poly(melamine–formaldehyde) as a green, heterogeneous organocatalyst. The corresponding substituted benzoxazoles and benzothiazoles were obtained in good to excellent yields by aerobic oxidation of o‐substituted
通过使用廉价,绿色,易得且可回收的中孔聚(三聚氰胺-甲醛)作为绿色,多相有机催化剂,开发了一种简单,高效且可持续的苯并恶唑和苯并噻唑衍生物合成策略。通过在双氧气氛下用各种醛类对邻位取代的氨基苯进行好氧氧化,可以得到良好至优异的收率,得到相应的取代苯并恶唑和苯并噻唑。催化剂可以通过简单的过滤完全回收,可以重复使用六次以上,而不会显着降低催化活性。