One-pot conversion of aromatic bromides and aromatics into aromatic nitriles via aryllithiums and their DMF adduct
作者:Sousuke Ushijima、Katsuhiko Moriyama、Hideo Togo
DOI:10.1016/j.tet.2010.11.109
日期:2011.2
molecular iodine in aq NH3. The same treatment of typical aromatics and heteroaromatics with n-butyllithium and subsequently DMF, followed by treatment with molecular iodine in aq NH3 also provided the corresponding aromatic nitriles in good yields. Moreover, the same treatment of aromatic bromides and aromatics with half amount of DIH (1,3-diiodo-5,5-dimethylhydantoin) instead of molecular iodine worked
通过用正丁基锂和随后的DMF处理,然后在NH 3水溶液中用分子碘处理,可以将各种芳族溴化物和碘化物顺利地转化为相应的芳族腈,产率中等至中等。用正丁基锂和随后的DMF相同地处理典型的芳族化合物和杂芳族化合物,然后在NH 3水溶液中用分子碘处理还以良好的收率提供了相应的芳族腈。此外,用一半量的DIH(1,3-二碘-5,5-二甲基乙内酰脲)代替分子碘对芳族溴化物和芳族化合物进行相同的处理,可以有效地分别以良好的收率得到相应的芳族腈。这些反应是新颖的且对环境无害的一锅法,可通过形成芳基锂及其DMF加合物,分别由芳族溴化物和芳族化合物制备芳族腈。