Microwave-assisted, efficient and regioselective Pd-catalyzed C-phenylation of halopyrimidines
作者:Susana Conde Ceide、Antonio Garrido Montalban
DOI:10.1016/j.tetlet.2006.04.082
日期:2006.6
report that flash heating microwave irradiation is a helpful tool in the formation of arylpyrimidines from the corresponding halopyrimidines. The palladium-catalyzed cross-coupling reactions of 2,4-di- and 2,4,5-trihalopyrimidines with phenylboronic acid under the above conditions are described. By use of the appropriate catalyst and the adequate halopyrimidine, good regioselectivity can be achieved in the
我们在本文中报道,快速加热微波辐射是从相应的卤代嘧啶形成芳基嘧啶的有用工具。描述了在上述条件下,钯催化的2,4-二-和2,4,5-三卤代嘧啶与苯基硼酸的交叉偶联反应。通过使用适当的催化剂和适当的卤代嘧啶,可以在杂环的2-,4-或5-位上获得良好的区域选择性。此外,我们表明,该方法可用于逐步制备单,二和三苯基嘧啶。