Synthesis of 6,7-disubstituted-5H-pyrrolo[2,3-b]pyrazines via palladium-catalyzed heteroannulation
作者:Corey R. Hopkins、Nicola Collar
DOI:10.1016/j.tetlet.2005.01.105
日期:2005.3
A concise and efficient method for the preparation of 6,7-disubstituted-5H-pyrrolo[2,3-b]pyrazines via a palladiumcatalyzed heteroarmulation is reported. Both conventional and microwave heating were used to perform the reactions, with the latter showing dramatically improved results. (C) 2005 Elsevier Ltd. All rights reserved.