作者:Alain Turck、Nelly Plé、Bruno Ndzi、Guy Quéguiner、Norbert Haider、Herbert Schuller、Gottfried Heinisch
DOI:10.1016/s0040-4020(01)86263-3
日期:1993.1
metalation, pyradazines, lithiation Starting from 3,6-dichloropyridazine, a series of new pyridazines bearing lithiation-directing groups in α-position to a ring nitrogen atom (compounds 1–5) was prepared. Metalation employing lithium alkylamides was found to afford ortho-substituted pyridazines. The regioselectivity, depending on the nature of the metalating agent, is discussed.
金属化,哒嗪,锂化从3,6-二氯哒嗪开始,制备了一系列新的哒嗪,其在α位上具有环氮原子的锂化方向(化合物1-5)。发现使用烷基酰胺锂的金属化得到邻位取代的哒嗪。讨论了区域选择性,取决于金属化剂的性质。