Research Article
Preparation of Mesoporous SBA-16 Silica-Supported Biscinchona Alkaloid Ligand for the Asymmetric Dihydroxylation of Olefins
Table 2
Heterogeneous AD of olefins using SBA-16-supported Ligand 1 a.
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The reactions were carried out at RT; molar ratio of olefin/OsO4/supported ligand = 1/0.01/0.01. bEe and absolute configuration were determined by chiral GC analysis. cMolar ratio of olefin/OsO4/supported ligand = 1/0.005/0.005. dReaction was carried out with regenerated 1 without further addition of OsO4. |