Li De-jiang
2005
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
Eight novel 2-p-nitrophenyl-5-aryl-1,3,4-oxadiazoles were synthesized by cyclization of POCl 3 with N,N′-diacylhydrazines. The structures were characterized by 1H NMR, IR, MS and elemental analysis and the fragmentation mechanism of MS spectra was discussed.