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2,5-Disubstituted 1,3,4-Oxadiazoles: Synthesis and mesomorphic behaviour

✍ Scribed by Dr. M. Parra; J. Belmar; H. Zunza; C. Zúñiga; G. Fuentes; R. Martínez

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
242 KB
Volume
337
Category
Article
ISSN
1615-4150

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A new synthesis of symmetrical 2,5-disub
A new synthesis of symmetrical 2,5-disubstituted 1,3,4-oxadiazoles
✍ Fouad Bentiss; Michel Lagrenée 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 182 KB 👁 1 views

## Abstract Several new 2,5‐disubstituted 1,3,4‐oxadiazoles have been synthesized in good yields by reaction of aromatic acids with hydrazine dihydrochloride in a mixture of orthophosphoric acid, phosphorus pentoxide and, in general, with addition of phosphorus oxychloride to the reaction mixture.