Hydroxylation of and halogen addition to the carbon carbon double bond of ()-2-hydroxy-3-enoic acids
作者:Hongtao Yu、Helmut Simon
DOI:10.1016/s0040-4020(01)86507-8
日期:1991.11
Various ()-2-hydroxy-3-enoic acids and their derivatives have been subjected to epoxidations with peracids, dihydroxylations with osmiumtetroxide or methylrhenium trioxide. Depending on the derivatives and reagents applied, the diastereomeric excesses (de) achieved were in the range of 8–80%. Based on the different addition mechanisms of osmiumtetroxide and methylrhenium trioxide, all four possible