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Nitrogen bridgehead compounds. Part 5. Cyclization of 2-(2-pyridylaminomethylene)-succinates and -glutarates

✍ Scribed by Vasv�ri-Debreczy, Lelle; Hermecz, Istv�n; M�sz�ros, Zolt�n; Horv�th, �gnes; Simon-P�rk�nyi, Piroska

Book ID
121382168
Publisher
Royal Society of Chemistry
Year
1978
Weight
543 KB
Volume
8
Category
Article
ISSN
1472-7781

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Nitrogen bridgehead compounds part 21. Preparation of new quaternary 2,3a,6a-triazaphenalenium salts
✍ István Bitter; Béla Pete; István Hermecz; Gábor Tóth; Kálmán Simon; Mátyás Czugl 📂 Article 📅 1982 🏛 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