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.
由(S)乳酸乙酯分十步合成标题化合物2。它们包括高度非对映选择性[2,3]硫-维蒂希重排(9→10),在CC键存在下进行化学选择性脱硫(8→12)以及由LDA和环氧化物13生成烯丙醇14在Mihelich的条件下获得。