(Z)-N<sup>3</sup>-(2-amino-1,2-dicyanovinyl)formamidrazone: a precursor in the synthesis of 1,5-diaminoimidazoles and 6-carbamoyl-1,2-dihydropurines
作者:M. José Alves、Brian L. Booth、A. Paula Freitas、M. Fernanda J. R. P. Proença
DOI:10.1039/p19920000913
日期:——
The reaction of ethyl (Z)-N-(2-amino-1,2-dicyanovinyl)formimidate with hydrazine monohydrate leads to (Z)-N3-(2-amino-1,2-dicyanovinyl)formamidrazone in almost quantitative yield. This compound proved to be an important starting material for the synthesis of the corresponding N1-isopropylidene-and N1-acetyl-formamidrazones.