HCID 86674216, compound → HCID 86674218, compound

Participants

Reaction Steps

The 1,4-di(2-thienyl)-5,6-dinitro-2,1,3-benzothiadiazole (502 mg, 1.29 mmol) synthesized above was added to acetic acid (40 mL) together with iron dust (878 mg, 15.72 mmol) and reacted at 90° C. for 24 hours. The resulting solution was poured to distilled water and extracted with ether. The organic solvent layer was dried to obtain 1,4-di(2-thienyl)-5,6-diamino-2,1,3-benzothiadiazole (410 mg, 1.24 mmol, yield: 96%) as yellowish brown solid. 1H NMR (400 MHz, CDCl3, ppm): δ 7.56 (dd, 2H, J=5.5 Hz, J=1.1 Hz), 7.38 (dd, 2H, J=3.3 Hz, J=1.1 Hz), 7.26 (t, 2H, J=4.7 Hz), 4.38 (br, 4H).

Provenance & Evidence