- Synthesis of heterocyclic systems by the reaction of zwitterionic compounds with isocyanates and thiophosgene
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The reaction of various isocyanates or thiophosgene with zwitterionic pyrimidinylium and 1,3-diazepinylium derivatives has led to the formation of unusually substituted [1,3]oxazolo[3,4-a]pyrimidines and novel heterocyclic system such as [1,3]oxazolo[3,4-
- Zaleska, Barbara,Karelus, Marcin
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p. 1831 - 1834
(2007/10/03)
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