作者:Timothy J. Senter、Michael L. Schulte、Leah C. Konkol、Tyler E. Wadzinski、Craig W. Lindsley
DOI:10.1016/j.tetlet.2013.01.041
日期:2013.3
In this Letter, we describe a novel approach for the general and enantioselective synthesis of a diverse array of small to large 1-azabicyclo[m.n.0]alkyl ring systems with an embedded olefin handle for further functionalization. The stereochemistry is established via a highly diastereoselective indium-mediated allylation of an Ellman sulfinimine in greater than 9:1 dr, which is readily separable by
在这封信中,我们描述了一种用于一般和对映选择性合成各种小到大 1-氮杂双环 [ mn .0] 烷基环系统的新方法,该系统具有嵌入的烯烃手柄以进一步功能化。立体化学是通过高度非对映选择性的铟介导的 Ellman 亚磺亚胺烯丙基化以大于 9:1 dr 建立的,这很容易通过柱色谱分离以提供单一的非对映异构体。这种方法允许快速制备 1-氮杂双环 [ mn .0] 烷烃环系统,这些环系统不容易通过任何其他化学方法以优异的总产率获得,并且对于许多系统来说,这是迄今为止报道的唯一对映选择性制备。