Confirmation and prevention of halogen exchange: practical and highly efficient one-pot synthesis of dibromo- and dichloropyridazinones
作者:Ji Zhang、Howard E. Morton、Jianguo Ji
DOI:10.1016/j.tetlet.2006.10.009
日期:2006.12
Commercially available anilines were converted by a two step, one-pot process to the corresponding pyridazinones in good to excellent yields. During the process research, a significant halogen exchange was confirmed and prevented which allowed the process to be scaled to multikilogram quantities. (c) 2006 Elsevier Ltd. All rights reserved.