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Preparation of 5-bromo-6-fluorosteroids

✍ Scribed by N. V. Samsonova; G. S. Grinenko; L. M. Alekseeva; Yu. N. Sheinker


Book ID
112396899
Publisher
Springer
Year
1976
Tongue
English
Weight
400 KB
Volume
10
Category
Article
ISSN
0091-150X

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## Abstract magnified image The reaction of primary or secondary amines with 2,5‐dibromo‐6‐phenylimidazo[2,1‐__b__][1,3,4]‐thiadiazole (**5**) leads to a chemoselective replacement of the 2‐Br substituent. The process represents a convenient route to the corresponding 2‐ylamines **7a‐d**. Hydrazin