Michael D. Coburn et al., "An Improved Synthesis of 3,6-Diamino-1,2,4,5-Tetrazine. I," J. Heterocyclic Chem., 27, pp. 1941-1945 (1990). |
M. D. Coburn et al., "An Improved Synthesis of 3,6-Diamino-1,2,4,5-Tetrazine. II From Triaminoguanidine and 2,4-Pentanedione," J. Heterocyclic Chem., 28, pp. 2049-2050 (1991). |
Chao-Han Lin et al., "The Synthesis of sym-Diaminotetrazine," J. Am. Chem. Soc., 76, pp. 427-430 (1954). |
R. N. Butler et al., "Sequential Attach By A Diketone On A Polyhydrazine; The Reaction Of Triaminoguanidine With Acetylacetone," J. Chem. Soc., (C), pp. 2510-2512 (1970). |