Synthesis
30 g (0.156 mol) 4-nitrophthalimide was stirred in 168 mL 32% ammonia solution
for 24 hours. Then it was filtered, washed with cold water, and tetrahydrofuran
(THF). The color of phthalimide was yellow and it turned to white as reaction
proceeds. Molecular formula: C8H7N3O4. Yield: 24 g (73%). Mp: 197 C.
References
[1] Canadian Journal of Chemistry, 1985, vol. 63, p. 121 - 128
[2] Heterocycles, 1984, vol. 22, # 9, p. 2047 - 2052
[3] Materials Research Bulletin, 2016, vol. 75, p. 144 - 154
[4] Acta Chemica Scandinavica, 1999, vol. 53, # 9, p. 714 - 720
[5] Journal of Organic Chemistry, 1990, vol. 55, # 7, p. 2155 - 2159