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Study of photochromic sydnones. I. Structure of 3-phenyl-4-(3-methyl-1-buten-2-yl)sydnone

✍ Scribed by Hašek, J. ;Obrda, J. ;Huml, K. ;Nešpůrek, S. ;Chojnacki, H. ;Šorm, M.

Book ID
114525402
Publisher
International Union of Crystallography
Year
1978
Weight
361 KB
Volume
34
Category
Article
ISSN
0567-7408

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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