الفهرس 
Tautomerism of TetrazolesOnly 14 pages are availabe for public view
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Abstract
A number of new tetrazole derivatives were synthesized. The structures of all the synthesized compounds were confirmed by their spectral and analytical data; IR, 1H NMR and mass spectra which were in
agreement with the assigned structures. The synthesized compounds were
tested for antimicrobial activity displaying different degrees of
antimicrobial activities or inhibitory actions. The dielectric properties
(dielectric constant έ and power factor tan δ) and conductivity of some
investigated compounds were measured as disc of 12 mm diameter, in the
temperature range (20- 150oC) and frequency range (0.1 KHz- 5 MHz)
using HIOKI 3532 LCR Hi- Tester.
The key tetrazole compounds 140 and 141 were synthesized by
refluxing phthalamide 137 with acrylonitrile in ethanol or stirring with
chloroacetonitrile in DMF at room temperature, respectively, followed by
reaction with sodium azide and ammonium chloride in DMF (Scheme 1).