Magnetic nano Fe3O4 and CuFe2O4 as heterogeneous catalysts: A green method for the stereo- and regioselective reactions of epoxides with indoles/pyrroles
this paper, we report a new solvent-free catalytic method using the magnetic nano Fe3O4 and CuFe2O4 as competent heterogeneous catalysts for the stereo- and regioselective reactions of epoxides with indoles/pyrroles, which gave the C-alkylated indoles/pyrroles. Chiral epoxides gave the alkylated indoles with a complete inversion of stereochemistry.
在本文中,我们报告了一种新的无溶剂催化方法,该方法使用磁性纳米Fe 3 O 4和CuFe 2 O 4作为有效的非均相催化剂,用于环氧化物与吲哚/吡咯的立体和区域选择性反应,使C-烷基化吲哚/吡咯。手性环氧化物使烷基化的吲哚具有完全的立体化学转化。
Friedel-Crafts Alkylation of Nitrogen Heterocycles Using [Bmim][OTf] as a Catalyst and Reaction Medium
Friedel-Crafts alkylation of nitrogenheterocycles, such as indoles and pyrroles, can be carried out in ionic liquids under mild conditions to afford the corresponding alkylated product in moderate to good yields