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Synthesis and Characterization of Hetero Cyclic Compounds Based on 1,3,4-Thiadiazoleand It's Resins | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 22, Issue 5, 2011, Pages 119-127 | ||
| Author | ||
| Redha I. AL-Bayati | ||
| Abstract | ||
| In this work,2-amino-5-mercapto-1,3,4-thiadiazole(1) was prepared from thiosemicarbized and (CS2) in the presenceof anhydrous (Na2CO3). The compound (2)[2,2-diamino-bis-1,3,4-thiadiazole-5-disulfide methane] was prepared from reaction compound (1) with dibromomethane and then convert into Schiff base (3) by refluxing compound with (p-hydroxybenzaldhyde, treatment of the Schiff bases (3) with formaldehyde in the presence of NaOH afforded the corresponding mthylolic phenolic resin (4) which upon treating with methanol or butanol in the presence of Conc-H2SO4 gave etheric resins (5-7) respectively. The epoxy resins (8) were prepared from the corresponding etheric resins and eipychlorohydrine in the presence of NaOH. Finally Reaction of epoxy resins (8) with morpholine leads to ring open giving resin with unstitched ring (9). | ||
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