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Opening of 6,7-dihydroimidazo[1,2-f]xanthines by the action of hydrazine hydrate

✍ Scribed by B. A. Priimenko; I. V. Fedulova; N. I. Romanenko; A. Yu. Chervinskii; T. M. Pekhtereva


Book ID
112356040
Publisher
Springer US
Year
1985
Tongue
English
Weight
57 KB
Volume
21
Category
Article
ISSN
0009-3122

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## Abstract magnified image The reaction of __N__‐(3‐carbethoxy‐4,5,6,7‐tetrahydrobenzo[__b__]thien‐2‐yl)‐__N__′‐phenylthiourea (**1**) with hydrazine hydrate in 1‐butanol afforded a mixture of compounds **2, 3** and **4**. Treatment of **3** and **4** with nitrous acid gave **6** and **8** respec