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New fused heterocycles by combined intra-intermolecular criss-cross cycloaddition of nonsymmetrical azines

✍ Scribed by Stanislav Man; Petr Kulhánek; Milan Potáček; Marek Nečas


Book ID
104251733
Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
81 KB
Volume
43
Category
Article
ISSN
0040-4039

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✦ Synopsis


Thermally induced intra-intermolecular criss-cross cycloaddition of nonsymmetrical azines in the presence of phenyl isocyanate is described. This one-pot reaction gives heterocyclic compounds containing three fused five-membered rings. The molecular and crystal structure of the products is reported and discussed.


📜 SIMILAR VOLUMES


Fused Tetracyclic Heterocycles by Therma
✍ Hana Zachová; Stanislav Man; Marek Nečas; Milan Potáček 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 172 KB

## Abstract The thermally initiated intramolecular criss‐cross cycloaddition of 3‐substituted homoallenylaldazines **5** has been explored. Their cyclization led to interesting new fused heterocyclic systems **6** consisting of four five‐membered rings with two nitrogen heteroatoms. The azines were