SmI2-mediated dialdehyde ‘radical then aldol’ cyclization cascades: a feasibility study
作者:Matthew D. Helm、Madeleine Da Silva、David Sucunza、Madeleine Helliwell、David J. Procter
DOI:10.1016/j.tet.2009.09.035
日期:2009.12
Dialdehydes undergo ‘radical then aldol’ cyclization cascades upon treatment with SmI2, generating four contiguous stereocenters with high diastereocontrol. The scope of the process has been explored and the cascade has been extended to also include lactone reduction.
二醛在用SmI 2处理后经历“自由基然后羟醛”环化级联,产生具有高非对映控制性的四个连续立体中心。已经探索了该方法的范围,并且级联已经扩展到还包括内酯还原。