Efficient and convenient epoxidation of alkenes to epoxides with H2O2 catalyzed by Co(OAc)2 in ionic liquid [C12py][PF6]
作者:Yu-Lin Hu、Yi-Wen Liu、De-Jiang Li
DOI:10.1007/s13738-015-0695-8
日期:2015.12
A simple, efficient, and eco-friendly procedure for the epoxidation of alkenes to epoxides with H2O2 catalyzed by Co(OAc)2 in ionic liquid [C12py][PF6] has been developed. The reactions were carried out with alkene, Co(OAc)2 (0.1 mmol), [C12py][PF6] (10 mL), and H2O2 (30 %, 11 mmol) at room temperature for 2–6 h. This atom-economical protocol affords the target products in good to high yields (88–98 %). The products can be separated by a simple extraction with organic solvent, and the catalytic system can be recycled and reused without loss of catalytic activity. A simple, efficient, and eco-friendly procedure for the epoxidation of alkenes to epoxides with H2O2 catalyzed by Co(OAc)2 in ionic liquid [C12py][PF6] has been developed.
开发了一种简单、高效且环保的烯烃环氧化反应方法,使用钴(OAc)2 在离子液体 [C12py][PF6] 中催化 H2O2 将烯烃转化为环氧化物。该反应在室温下进行,使用烯烃、钴(OAc)2 (0.1 mmol)、[C12py][PF6] (10 mL) 和 H2O2 (30%,11 mmol),反应时间为 2-6 小时。这种原子经济的方案可得到较高收率 (88-98%) 的目标产物。产物可以通过简单的有机溶剂萃取分离,且催化体系可以回收再利用,不会损失催化活性。