electron-enriched Danishefsky-type dienes afforded highly functionalized and optically enriched cyclopentenones in excellent yields (up to 97% yield) and with good to excellent enantioselectivities (60–92% ee). (−)-1,13-Herbertenediol was successfully synthesized in an overall 25% yield employing the optically enriched cyclopentenone with an all-carbon quaternary center as the key intermediate.
铑手性二烯配合物催化芳基α-重氮芳基
乙酸酯和电子富集的Danishefsky型二烯的对映选择性环加成反应,可以提供高官能度和光学富集的
环戊烯酮,产率高(产率高达97%),对映选择性好(至60-92%ee) )。使用具有全碳季中心的光学富集的
环戊烯酮作为关键中间体,成功以25%的总产率成功合成了(-)-1,13-
间苯二酚。