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587006-12-0

3-(4-BROMOPHENYL)-5-P-TOLYL-1,2,4-OXADIAZOLE synthesis

2synthesis methods
-

Yield:587006-12-0 76%

Reaction Conditions:

in water; for 12 h;Reflux;

Steps:

General procedure for the preparation of 1,2,4-oxadiazole 3

General procedure: The amidoxime (10 mmol) and anhydride (11 mmol) was added to water (20 mL) and the solution was stirred for 12 h at reflux. After stirring, the reaction mixture was washed with diethyl ether (3x50 mL). The resulting mixture was subjected to column chromatography on silica gel with EtOAc/n-hexane (1:9) and evaporation of the solvent under reduced pressure gave pure products in 35-93% yields. All products gave satisfactory spectral data in accord with the assigned structures.

References:

Kaboudin, Babak;Malekzadeh, Leila [Tetrahedron Letters,2011,vol. 52,# 48,p. 6424 - 6426] Location in patent:supporting information; experimental part

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