Adding a certain compound to certain chemical reactions, such as: 26663-77-4, name is Methyl benzimidazole-5-carboxylate, 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 26663-77-4, category: imidazoles-derivatives
8.2. PREPARATION OF 3,4-DIISOTHIOCYANATOBENZOIC ACID, METHYL ESTER, 11 A 250 ml round bottom flask was charged with 4.98 g (50 mmol) of calcium carbonate, 10 ml of methylene chloride, and 3 ml of water. The resultant slurry was cooled to 10 C. and then 2.27 ml (3.43 g, 30 mmol) of thiophosgene (Aldrich) followed by 2.50 g (14.2 mmol) of 5-benzimidazolecarboxylic acid, methyl ester, 10, dissolved in 50 ml of a 1:1 mixture of acetonitrile in water were slowly added. The reaction mixture was stirred for 4 h and the temperature was allowed to rise to 15-20 C. The orange-white reaction slurry was then filtered and the filtrate was washed with three 50 ml portions of methylene chloride. The organic layers were combined, dried over MgSO4, filtered, and the solvents were removed under vacuum to leave a beige residue. This residue was triturated four times with petroleum ether to leave, after drying for 16 h at 25 C. at 30 mm pressure, 2.14 g (8.56 mmol, 60% yield) of 3,4-diisothiocyanatobenzoic acid, methyl ester, 11, as an off-white powder. 1 H NMR (CDCl3, TMS): delta7.85-7.95 (m, 2H), 7.30 (d, 1H), 3.92 (s, 3H). IR showed a doublet (NCS) at 2140 cm-1.
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, Methyl benzimidazole-5-carboxylate, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; Cytogen Corporation; US5585468; (1996); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem