作者:Steven M. Allin、W. Russell Bowman、Rehana Karim、Shahzad S. Rahman
DOI:10.1016/j.tet.2006.02.071
日期:2006.5
Solid phase synthesis has been used to carry out intramolecular aromatic homolytic substitution with benzoimidazole precursors. The protocol attaches the radical precursors to the resins via the radical leaving groups (in the aromatic homolytic substitution). When the radical reactions are complete, the leaving group, unaltered starting material and reduced uncylised products remain attached to the
固相合成已被用于用苯并咪唑前体进行分子内芳香族均质取代。该方案将自由基前体通过自由基离去基团(在芳香族均质取代中)连接到树脂上。当自由基反应完成时,离去基团,未改变的起始原料和还原的未酰化产物仍保留在树脂上,这有利于环化产物的容易分离。在固相自由基反应中使用聚焦微波辐射的新方法大大缩短了反应时间。氢化三丁基锗氢化物已用于取代自由基反应中有毒且麻烦的氢化三丁基锡。