Efficient and selective peracetic Acid epoxidation catalyzed by a robust manganese catalyst.
Efficient and selective peracetic Acid epoxidation catalyzed by a robust manganese catalyst.
复制标题
DOI：
10.1021/ol800329m
复制
发表时间：
2008-04
期刊：
影响因子：
5.2
通讯作者：
I. Garcia-Bosch;A. Company;X. Fontrodona;X. Ribas;M. Costas
中科院分区：
文献类型：
--
作者：
I. Garcia-Bosch;A. Company;X. Fontrodona;X. Ribas;M. Costas
以过氧乙酸为氧化剂、含四齿配体的锰系催化剂在环氧化反应中表现出较高的催化活性。该体系具有很宽的底物范围，需要很小的催化剂负载量(0.1-0.15%)。该催化剂对脂肪族顺式烯烃有明显的选择性。机理研究指出，一种亲电的氧化剂以协调的步骤传递氧原子。
A manganese catalyst containing a tetradentate ligand derived from triazacyclononane exhibits high catalytic activity in epoxidation reactions using peracetic acid as oxidant. The system exhibits broad substrate scope and requires small (0.1-0.15 mol %) catalyst loading. The catalyst is remarkably selective toward aliphatic cis-olefins. Mechanistic studies point toward an electrophilic oxidant delivering the oxygen atom in a concerted step.