Synthesis and application to asymmetric allylic amination of substituted monodonor diazaphospholidine ligands
作者:Christopher W Edwards、Mark R Shipton、Nathaniel W Alcock、Howard Clase、Martin Wills
DOI:10.1016/s0040-4020(03)01062-7
日期:2003.8
The synthesis of a series of substituted monodonor diazaphospholidine ligands is described. A regioselective lithiation process is a key step in one of these syntheses. The compounds are designed to be incorporated into soluble polymer and other solid phase supports. Enantiomeric excesses of up to 88% were observed when these compounds were employed in palladium-catalysed asymmetric amination reactions
描述了一系列取代的单给体二氮杂磷腈配体的合成。区域选择性锂化工艺是这些合成方法之一的关键步骤。这些化合物被设计为掺入可溶性聚合物和其他固相载体中。当这些化合物用于钯催化的不对称胺化反应中时,观察到高达88%的对映体过量。