作者:Laurence R. Doyle、Alex Heath、Choon Heng Low、Andrew E. Ashley
DOI:10.1002/adsc.201300787
日期:2014.2.10
1,2-Bis(dialkylphosphino)ethanes are readily prepared from the parent phosphine oxides, via a novel sodium aluminium hydride/sodium hydride reduction protocol of intermediate chlorophosphonium chlorides. This approach is amenable to multi-gram syntheses, utilises readily available and inexpensive reagents, and benefits from a facile non-aqueous work-up in the final reductive step.
通过中间体氯代氯化phosph的新型氢化铝铝/氢化钠还原方案,可以容易地由母体氧化膦制备1,2-双(二烷基膦基)乙烷。该方法适用于多克合成,使用容易获得且便宜的试剂,并且在最终的还原步骤中得益于简便的非水后处理。