Nitrogen bridgehead compounds part 21. P
Nitrogen bridgehead compounds part 21. Preparation of new quaternary 2,3a,6a-triazaphenalenium salts
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István Bitter; Béla Pete; István Hermecz; Gábor Tóth; Kálmán Simon; Mátyás Czugl
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Article
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1982
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Elsevier Science
🌐
French
⚖ 228 KB
## Sumary: The first representatives of a new ring system, the 2,3a,6a\_triazaphenalenium quaternary salts are prepared by the cycloaddition of tetrahydro-4H-pyrido[1,2-alpyrimidin--4-ones containing an o-chloroenamine moiety with azomethines. Earlier we have reported2 that 6,7,8,9-tetrahydro-4H-p