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SYNTHESIS OF 5-PHENYL-4,6-DIMETHYL-2-PYRIMIDOL AND DERIVATIVES FROM THE CYCLIZATION OF UREA WITH 3-PHENYL-2,4-PENTANEDIONE

✍ Scribed by HAUSER, CHARLES R.; MANYIK, ROBERT M.

Book ID
126160243
Publisher
American Chemical Society
Year
1953
Tongue
English
Weight
412 KB
Volume
18
Category
Article
ISSN
0022-3263

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## Abstract The synthesis of potential fluorescent active 4‐(5‐aryl‐1,3,4‐oxadiazol‐2‐yl)phenylhydrazine derivatives was accomplished in three steps. The key step was the dehydration cyclization of 1,2‐diacylhydrazines to form the 1,3,4‐oxadiazole ring by use of acetic anhydride/perchloric acid mix