Transformations of phenylhydrazones of 5-acyl-1,2,4-triazines to pyrazolo[4,3-<i>e</i>][1,2,4]triazines or 4-cyanopyrazole
作者:Mariusz Mojzych、Andrzej Rykowski
DOI:10.1002/jhet.5570440504
日期:2007.9
A simple and high yielding preparation of pyrazolo[4,3-e][1,2,4]triazines and 4-cyano-3-methyl-1-phenylpyrazole derivatives from corresponding phenylhydrazones of 5-acyl-1,2,4-triazines by melt under acidic medium and by thermal heating, respectively.
由5-酰基-1,2,4-的相应苯hydr类化合物简单高效地制备吡唑并[4,3- e ] [1,2,4]三嗪和4-氰基-3-甲基-1-苯基吡唑衍生物通过在酸性介质下熔融和通过热加热分别形成三嗪。