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Synthèse de l'oxadiazole-1,2,4

✍ Scribed by C. Moussebois; R. Lenaers; F. Eloy


Publisher
John Wiley and Sons
Year
1962
Tongue
German
Weight
258 KB
Volume
45
Category
Article
ISSN
0018-019X

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✦ Synopsis


ACTA

De la solution aqueuse filtrCe on a is016 aprks Cvaporation partielle une faible quantit6 d'oxadiazolyl-3-formamidoxime. F. 115" dCc. C,H40,N, Calc. C 28,lO H 3,12 N 43,70% Tr. C 28,49 H 3,09 N 43,71% Me'thode B. 17,4 g (0,l mole) de diformyl-oxamidedioxime trks pure sont fondus ii 170" puis maintenus & 130' jusqu'& cc que l'eau form6e par cyclisation soit complhtement Bvaporee. Le rksidu est cristallis6 plusieurs fois de l'eau chaude jusqu'k ce que le point de fusion atteigne 136". Rendement 6 g (35%).

SUMMARY

The authors report the preparation of the 1,2,4-oxadiazoles monosubstituted (a) in 5 position by CH,, C,H,, and #-C6H4Br, (b) in 3 position by CH,, and C,H,.

3,3'-Bioxadiazole XI11 has been prepared from oxamide dioxime and formic acid in the presence of BF,.


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