- Effect of additives on chemoselectivity and diastereoselectivity in the catalytic epoxidation of chiral allylic alcohols with hydrogen peroxide and binuclear manganese complexes
-
The catalytic oxidations of chiral allylic alcohols 2 by manganese complexes of the cyclic triamine 1,4,7-trimethyl-1,4,7-triazacyclononane (tmtacn) 1 and hydrogen peroxide as oxygen donor in the presence of co-catalyst are investigated to understand the
- Kilic, Hamdullah,Adam, Waldemar,Alsters, Paul L.
-
experimental part
p. 1135 - 1140
(2009/07/04)
-
- [{W(=O)(O2)2(H2O)}2(μ-O)] 2--Catalyzed Epoxidation of Allylic Alcohols in Water with High Selectivity and Utilization of Hydrogen Peroxide
-
A dinuclear peroxotungstate, K2[{W(=O)(O2) 2(H2O)}2(μ-O)] · 2 H2O, exhibits high catalytic performance for the epoxidation of various allylic alcohols with only one equivalent of hydrogen peroxide at 305 K in water solvent. The effectiveness of this system is evidenced by high chemo-, regio-, and diastereoselectivity, and stereospecificity for the epoxidation of allylic alcohols. Furthermore, products/catalyst separation can be easily carried out by simple extraction and the catalyst recovered can be reused with the maintenance of the catalytic performance.
- Kamata, Keigo,Yamaguchi, Kazuya,Hikichi, Shiro,Mizuno, Noritaka
-
p. 1193 - 1196
(2007/10/03)
-