Adding a certain compound to certain chemical reactions, such as: 23611-75-8, name is Methyl 6-chloropyrazine-2-carboxylate, belongs to pyrazines 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 23611-75-8, category: Pyrazines
Methyl 6-(chloropyrazine)-2-carboxylate (13) (2g, 0.0115mmol) was dissolved in 80mL of 87 DMSO. 88 Sodium azide (3g, 0.0463mmol) and 39 triphenylphosphene (4.6g, 0.1738mmol) were added and refluxed at 120C for 4h. 20mL of 1N 89 HCl was added and the reaction was continued at 120C for 2h. The mixture was cooled and neutralized by aqueous NaHCO3 solution and 131 product was extracted in ethyl acetate, dried with Na2SO4 which was then concentrated and dried with n-pentane to get 1.4g of compound 14 as yellow solid (yield 82.4%). 1H NMR (400MHz, DMSO-d6) delta 8.28-8.27 (m, 1H), 8.07 (s, 1H), 6.90 (s, 2H), 3.84 (s, 3H). C6H7N3O2 [M]: 153.14; MS (ESI) m/z: [M+H]+: 154.05
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Reference:
Article; Trivedi, Prakruti; Adhikari, Nilanjan; Amin, Sk. Abdul; Jha, Tarun; Ghosh, Balaram; European Journal of Pharmaceutical Sciences; vol. 124; (2018); p. 165 – 181;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem