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Synthesis of 5-methylidenehexahydropyrrolo[l,2-a]imidazoles and 6-methylideneoctahydropyrrolo[l,2-a]pyrimidines by the reaction of 1-alkynyl-1-chlorocyclopropanes with lithium derivatives of 1,2- and 1,3-diaminoalkanes

✍ Scribed by K. N. Shavrin; V. D. Gvozdev; O. M. Nefedov

Publisher: Springer
Year: 2010
Tongue: English
Weight: 381 KB
Volume: 59
Category: Article
ISSN: 1573-9171
DOI: 10.1007/s11172-010-0261-6

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## Abstract magnified image The condensation of 5‐amino‐4‐phenyl‐1,2,3‐triazole (**1**) with chalcones **2a‐e** or 3‐dimethylamino‐propiophenone (**4f**) leads to the 6,7‐dihydro‐(1,2,3)‐triazolo[1,5‐__a__]pyrimidines **3a‐f.** The equilibrium of **3** and the tautomeric 4,7‐dihydro‐(1,2,3)‐triazo