Preparation of a number of 3,1,4-oxad isazole compounds derived from coumarin compounds

الملخص

Substituted 1,3,4-oxadiazoles are well known to posses biological activities, and to
have important uses in the medical, agricultural and industrial applications. Several
compounds of this group were synthesized from coumarin derivatives, the structure of the
new compounds were established on the basis of elemental analysis , physical and spectral
data