Heterocycles p. 949 - 954 (1993)
Update date:2022-07-30
Topics:
Katoh, Akira
Ohkanda, Junko
Sato, Hiroshi
Sakamoto, Tsuyosi
Mitsuhashi, Keiryo
3-(Aryl)substituted 2,4(1H,3H)-pteridinediones are synthesized in high yields by addition and simultaneous cyclization of methyl 3-amino-2-pyrazinecarboxylate with isocyanates.The remarcable difference in the reactivity is observed among heterocumulenes.The absorption and fluorescence spectroscopic characteristics of the titled compounds are also discussed.
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