作者:William F. Berkowitz、Yanzhong Wu
DOI:10.1016/s0040-4039(97)00604-7
日期:1997.5
SmI2/HMPA converts alkyl iodides and bromides to alkyl samarium reagents which can be cross-coupled with primary alkyl iodides and bromides and secondary iodides in the presence of Cu(I) halides or Li2CuCl4 at room temperature. The alkylation of primary iodides gives good yields of cross-coupling products with negligible homo-coupling products. The method is especially useful for the small scale cross-coupling
SmI 2 / HMPA将烷基碘化物和溴化物转化为烷基sa试剂,在室温下,在卤化铜(I)或Li 2 CuCl 4存在的情况下,烷基with试剂可以与伯烷基碘化物和溴化物以及仲碘化物交叉偶联。伯碘化物的烷基化使交叉偶联产物与均相偶联产物可忽略不计的产率很高。该方法对于小规模的交叉偶联反应特别有用。