[Problem to be Solved] To provide an axially asymmetric optically active biarylphosphorus compound that can easily produced without the step of optical resolution which was almost indispensable in conventional methods.
[Means for Solving the Problems] A method for producing an axially asymmetric phosphorus compound represented by the general formula (1), comprising a cycloaddition reaction of a compound having a triple bond with the use of a catalyst containing rhodium metal and an optically active bisphosphine.
(In the formula (1), R
1
and R
2
may be the same or different and independently are an alkyl group optionally having a substituent group, a cycloalkyl group optionally having a substituent group, an aryl group optionally having a substituent group, an alkoxy group optionally having a substituent group or an aryloxy group optionally having a substituent group; * is axial asymmetry.)
【需要解决的问题】提供一种轴向不对称的光学活性双芳基
磷化合物,可以在传统方法中几乎必不可少的光学分辨步骤之外轻松制备。【解决问题的方法】一种制备由通式(1)表示的轴向不对称
磷化合物的方法,包括使用含有
铑金属和光学活性
双膦催化剂的化合物进行三重键的环加成反应。(在式(1)中,R1和R2可以相同或不同,独立地是一个有取代基的烷基,一个有取代基的环烷基,一个有取代基的芳基,一个有取代基的烷氧基或一个有取代基的芳氧基;*表示轴向不对称。)