New discoveries in chemical research and development in 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 4923-01-7, name is 5-Methyl-4H-1,2,4-triazol-3-amine belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 4923-01-7
A mixture of methyl 3-oxo-2-(4-(4-(trifluoromethoxy)phenoxy)piperidin-1 -yl)butanoate (70A) (40 mg, 0.107 mmol),Ts-OH (3.04 mg, 0.016 mmol) and 3-methyl-1H-1,2,4-triazol-5-amine (15.68 mg, 0.160 mmol) in toluene (1 mL) was heated at 120 C for overnight. The reaction mixture was cooled and solvent was removed to give a residue, which was purified by HPLC to give desired product. 1H NMR (400 MHz, Methanol-d4) delta 7.24 – 7.15 (m, 2H), 7.12 – 6.95 (m, 2H), 4.39 (s, 1 H), 3.96 – 3.76 (m, 1 H), 3.74 – 3.53 (m, 2H), 2.98 – 2.77 (m, 1 H), 2.51 (s, 3H), 2.43 (s, 3H), 2.24- 2.06 (m, 2H), 2.06- 1.89 (m, 1H), 1.85- 1.60 (m, 1H). Method 1: RT= 1.11 min.; M/Z(M+H) = 424.1.
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Reference:
Patent; NOVARTIS AG; CHIANELLI, Donatella; GIBNEY, Michael; LERARIO, Isabelle K.; LIANG, Fang; LIU, Xiaodong; MOLTENI, Valentina; NAGLE, Advait Suresh; SMITH, Jeffrey M.; SUPEK, Frantisek; XIE, Yongping; YEH, Vince; (64 pag.)WO2018/229683; (2018); A1;,
1,2,3-Triazole – Wikipedia,
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