An easy route for the synthesis of pyrazine-2,3-dicarbonitrile 5,6-bis-substituted derivatives using a palladium catalyst
作者:Hasrat Ali、Johan E. van Lier
DOI:10.1016/j.tetlet.2012.06.102
日期:2012.9
An easy synthetic method for the preparation of pyrazine-2,3-dicarbonitrile 5,6-bis-substituted derivatives using Pd-catalyzed cross coupling reaction (Sonogashira, Suzuki, Heck) is described. The reaction conditions allow preparing symmetrical and unsymmetrical bis-substituted products in moderate to high yields, as precursors for the preparation of highly substituted symmetrical and non-symmetrical