%0 Journal Article %T Vilsmeier-Haack Reaction of Phosphonic Dihydrazide: Synthesis of 4- {[(Dimethyl)azanylidenonium Chloride] Methyl} Amino-2,3-Dihydro-3-Oxo-4H-1,2,4, 3-Triazaphosphole %J International Journal of Materials and Chemistry %@ 2166-5354 %D 2012 %I %R 10.5923/j.ijmc.20120205.02 %X A simple method for the synthesis of 4-{[(dimethyl)azanylidenonium chloride] methyl}amino-2,3-dihydro- 3-oxo-4H-1,2,4,3-triazaphosphole (2) is described. Treatment of phosphonic dihydrazide (1) with Vilsmeier-Haack reagent led directly to the title compound in high yield. %K Phosphonic Dihydrazide %K Vilsmeier Reagent %K 1 %K 2 %K 4 %K 3-Triazaphosphole %U http://article.sapub.org/10.5923.j.ijmc.20120205.02.html