Direct preparation of benzylic manganese reagents from benzyl halides, sulfonates, and phosphates and their reactions: applications in organic synthesis
作者:YoungSung Suh、Jun-sik Lee、Seoung-Hoi Kim、Reuben D Rieke
DOI:10.1016/s0022-328x(03)00500-x
日期:2003.11
The use of highly active manganese (Mn)*, prepared by the Rieke method, was investigated for the direct preparation of benzylic manganese reagents. The oxidative addition of the highly active manganese to benzylic halides was easily completed under mild conditions. Moreover, benzylic manganese sulfonates and phosphates were prepared by direct oxidative addition of Mn* to the carbon–oxygen bonds of
研究了通过Rieke方法制备的高活性锰(Mn)*用于直接制备苄基锰试剂的方法。高活性锰在苄基卤化物中的氧化加成反应很容易在温和的条件下完成。此外,通过将Mn *直接氧化加成到苄基磺酸盐和磷酸盐的碳-氧键上来制备苄基锰磺酸盐和磷酸盐。发现所得的苄基锰试剂与多种亲电试剂发生交叉偶联反应。这些反应大多数在温和条件下在不存在任何过渡金属催化剂的情况下进行。此外,还研究了使用高活性锰制备不含过渡金属催化剂的功能化苄基卤化物的均偶联产物。N-烷氧基羰基吡啶鎓盐。