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Heterocycles. XCVII. Pyridazines. LI. Synthetic approaches to pyridazino(2,3-a)-1,3,5-triazines, a novel heterocyclic system

✍ Scribed by Zupan, M.; Stanovnik, B.; Tisler, M.


Book ID
127071236
Publisher
American Chemical Society
Year
1972
Tongue
English
Weight
616 KB
Volume
37
Category
Article
ISSN
0022-3263

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## Abstract magnified image __N__‐__t__‐Butylamidines **1** on heating with diphenyl carbonate (**2**) at 150‐180Β° gave the 1,3,5‐triazine‐2,4(1__H__,3__H__)‐dione derivatives **5**. Acylation of amidines **1** and cyclocondensation of the resulting carbamates **3** gave [1,3,5,7]tetrazocine‐2,6‐d