Adding a certain compound to certain chemical reactions, such as: 583-39-1, name is 2-Mercaptobenzimidazole, belongs to imidazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 583-39-1, Quality Control of 2-Mercaptobenzimidazole
A mixture of 1H-benzo[d]imidazole-2(3H)-thione 1 (0.026 mole, 5 gm) in 60 mL ethanol and inpresence of triethylamine (0.01 mol, 1.39 mL) was refluxed for 1 h, then 1,3-dibromopropane (0.013 mol,2.6 g) was added. The reaction mixture was further heated under reflux for 5 h. Then, ethanol wasremoved under vacuum, and water (20 mL) was added to the product, and kept for 24 h at roomtemperature to give white crystals. The product (4.68 g, 83% yield), was recrystallized from ethanol,TLC, Rf = 0.382 (1:1, n-hexane:ethyl acetate), m.p. 201-202 C. 1H-NMR (DMSO-d6) : 2.29 (m, 2H,CH2), 3.26 (t, 2H, CH2), 4.17 (t, 2H, CH2), 7.11 (m, 2H, Ar-H), and 7.39 ppm (m, 2H, Ar-H). 13C-NMR(DMSO-d6) : 21.9 (CH2), 24.3 (CH2), 41.7 (CH2), 107.9 (CH), 116.1 (CH), 120.02 (CH), 120.94 (CH),134.69 (C), 134.81 (C), 141.4; 145.75 ppm (C=N). Calc. for C10H10N2S (190.26): C, 63.13; H, 5.30;N, 14.72%. Found: C, 63.42; H, 5.11; N, 14.41%.
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Reference:
Article; El Ashry, El Sayed H.; Kilany, Yeldez El; Nahas, Nariman M.; Barakat, Assem; Al-Qurashi, Nadia; Ghabbour, Hazem A.; Fun, Hoong-Kun; Molecules; vol. 21; 1; (2016);,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem