First synthesis of 4,5-dihydro-3(2H)-pyridazinones via Zn-mediated hydrohydrazination
作者:Karolin Alex、Annegret Tillack、Nicolle Schwarz、Matthias Beller
DOI:10.1016/j.tetlet.2008.05.084
日期:2008.7
The hydrohydrazination of 4-pentynoic acid with different arylhydrazines proceeds smoothly in the presence of zinc chloride. The domino amination-amiclation sequence leads to aryl-substituted 4,5-dihydro-3(2H)-pyridazinones. (c) 2008 Elsevier Ltd. All rights reserved.