Research Article
Synthesis, Characterization, and Biological Activity of 5-Phenyl-1,3,4-thiadiazole-2-amine Incorporated Azo Dye Derivatives
Table 1
Yield, melting point,
, molar absorptivity (
), molecular formula, and solubility data of dye
3(a–f).
| | Dye | Yield (%) | MP (°C) | in nm | Log | Molecular formula | Mol. wt. | Solubility |
| | 3a | 46% | 216–218 | 490 | 4.2 | C17H11N5OS | 333.36 | Acetone/Ethanol/DMF/DMSO | | 3b | 57% | 169–171 | 488 | 4.51 | C13H11N7S | 297.33 | Acetone/Ethanol/DMF/DMSO | | 3c | 71% | 189–191 | 512 | 4.02 | C16H15N5S | 309.38 | Acetone/Ethanol/DMF/DMSO | | 3d | 66% | 179–182 | 525 | 4.58 | C18H12N4OS | 332.37 | Acetone/Ethanol/DMF/DMSO | | 3e | 61% | 192–194 | 509 | 4.17 | C14H10N4O2S | 298.31 | Acetone/Ethanol/DMF/DMSO | | 3f | 54% | 202–204 | 498 | 4.3 | C12H8N6O2S | 300.29 | Acetone/DMSO Ethanol/DMF |
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