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Synthesis of Isomeric 3-Aminopyridopyrimidin-4(3H)ones

B. Stanovnik ; Department of Chemistry, University of Ljubljana, 61000 Ljubljana, Slovenia, Yugoslavia
M. Tišler ; Department of Chemistry, University of Ljubljana, 61000 Ljubljana, Slovenia, Yugoslavia


Puni tekst: engleski pdf 5.796 Kb

str. 243-248

preuzimanja: 231

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Sažetak

It could be established that the reaction between hydrazine
and enamines, formed from ethyl 2(or 3)-aminopyridine-3(or 2)carboxylates and diethyl ethoxymethylenemalonate or ethyl ethoxymethylenecyanoacetate, afforded 3-aminopyrido(2,3-d)pyrimidin-
4(3H)one or 3-aminopyrido(3,2-d)pyrimidin-4(3H)one, respectively.
Similarly, these aminopyridinecarboxylates condense with N,N-
dimethylformamide dimethylacetal and react further with
hydrazine to give the same bicyclic compounds.

Ključne riječi

Hrčak ID:

197270

URI

https://hrcak.srce.hr/197270

Posjeta: 366 *