Sb. Bhawsar et al., SYNTHESIS OF COUMARINO PYRAZOLES, 1,3,4-OXADIAZOLINE-5-THIONES, N-BENZYLIDENE HYDRAZIDES AND THEIR ANTIMICROBIAL ACTIVITY, Indian Journal of Heterocyclic Chemistry, 5(1), 1995, pp. 29-32
Coumarino acid hydrazides prepared in two steps on condensation with a
cetyl acetone gave pyrazole derivatives. Also on reaction with carbon
disulphide in ethanol and m- bromobenzaldehyde gave 1,3,4-oxadiazoline
-5-thiones and N-m-bromo-benzylidene derivatives respectively. Their a
ntimicrobial activity has been tested against Alternaria brassicicola,
Aspergillus niger, E. coli and Lactobacillus.