Highly Selective 1,4- and 1,6-Addition of P(O)H Compounds to<i>p</i>-Quinones: A Divergent Method for the Synthesis of<i>C</i>- and<i>O</i>-Phosphoryl Hydroquinone Derivatives
作者:Biquan Xiong、Ruwei Shen、Midori Goto、Shuang-Feng Yin、Li-Biao Han
DOI:10.1002/chem.201202074
日期:2012.12.21
functionality. Further studies on these reactions by using optically active H‐phosphinates showed that all addition reactions took place stereospecifically with retention of configuration at the phosphorus center. The findings lead to the establishment of a divergent method for the synthesis of C‐ and O‐phosphoryl hydroquinone derivatives from easily available P(O)H compounds.
P的反应(O) H的化合物与p -quinones可以继续通过任1,4-或通过使用不同的添加剂,以1,6-加成途径选择性地得到良好的收率相应C-和O-磷酰基氢醌衍生物。P(O)H化合物向p的氧化双1,4-加成还可以通过调节溶剂来获得对苯二酚,从而轻松合成具有磷官能团的双取代对苯二酚。通过使用旋光性H-次膦酸酯对这些反应的进一步研究表明,所有加成反应均发生立体定向,并且在磷中心保留了构型。这些发现导致建立了一种从容易获得的P(O)H化合物合成C-和O-磷酰基氢醌衍生物的方法。