Two new asymmetric epoxidation catalysts. Unusual stoichiometry and inverse enantiofacial selection
作者:Linda D. L. Lu、Roy A. Johnson、M. G. Finn、K. Barry Sharpless
DOI:10.1021/jo00178a039
日期:1984.2
TiCl<sub>4</sub>/<i>tert</i>-Butyl Hydroperoxide: Chemioselective Oxidation of Secondary Alcohols and Suppression of Sharpless Epoxidation
作者:Kuangsen Sung、Chun-Tin Shei、Hao-Lun Chien
DOI:10.1055/s-2008-1066997
日期:——
Replacing Ti(Oi-Pr)4 with TiCl4 under the normal Sharpless epoxiation conditions resulted in a shut down of the epoxidation reaction. Instead, a chemioselective oxidation of secondary alcohols in the presence of primary alcohols occurred.