1,2-asymmetric induction in the [2,3]-thia-wittig rearrangement applied to a synthesis of the C17–C22 subunit of ionomycin
作者:Holger von der Emde、Anja Langels、Mathias Noltemeyer、Reinhard Brückner
DOI:10.1016/s0040-4039(00)78355-9
日期:1994.10
The title compound 2 was synthesized from (S) ethyl lactate in 10 steps. They include a highly diastereoselective [2,3] thia-Wittig rearrangement (9→10), a chemoselective desulfurization in the presence of a CC bond (8→12), and the generation of allylic alcohol 14 from LDA and epoxide 13 obtained under Mihelich's conditions.