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A convenient synthesis of 4-(2-pyridyl)imidazolidine-2-thiones by the rearrangement of imidazo[1,5-a]pyridine-3-thione

✍ Scribed by Eric W. Collington; David Middlemiss; Terry A. Panchal; Derek R. Wilson


Publisher
Elsevier Science
Year
1981
Tongue
French
Weight
173 KB
Volume
22
Category
Article
ISSN
0040-4039

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## Abstract The imidazo[1,2‐__a__]pyridine system was investigated as a synthon for the building of very attractive fused triazines, a planar, angular __tri__‐heterocycle with potential biological activity. Thus ethyl 3‐nitroimidazo[1,2‐__a__]pyridine‐2‐carboxylate was treated with ammonia or with