Brief introduction of 3-Methyl-1H-1,2,4-triazole

According to the analysis of related databases, 7170-01-6, the application of this compound in the production field has become more and more popular.

7170-01-6, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 7170-01-6 as follows.

A mixture of (E)-N-(2-bromophenyl)-3-(3-methoxy-4-prop-2-ynoxy-phenyl)prop-2- enamide (0.2 g, 0.517 mmol, 1.0 equiv.) (4), 3-methyl- lH-l,2,4-triazole (0.258 g, 3.11 mmol, 6.0 equiv.), cuprous iodide (0.049 g, 0.258 mmol, 0.5 equiv.) and cesium carbonate (0.506 g, 1.55 mmol, 3.0 equiv.) in dimethyl sulfoxide (2 mL) was stirred at 100 C under nitrogen in microwave for 3 hours. The mixture was cooled to 25C, diluted with ethyl acetate (20 mL) and filtered. The filtrate was concentrated under reduced pressure to give a residue which was purified by preparative HPLC to give the desired product as a light yellow solid (5 mg, 2%); 1H NMR (CDCI3, 400 MHz) delta 9.89 (s, 1H), 8.63 (d, = 8.0 Hz, 1H), 8.37 (s, 1H), 7.64 (d, = 16.0 Hz, 1H), 7.46 (t, = 8.0 Hz, 1H), 7.35 (d, = 8.0 Hz, 1H), 7.21 (t, = 8.0 Hz, 1H), 7.15 (d, = 8.0 Hz, 1H), 7.08 – 7.05 (m, 2H), 6.36 (d, = 16.0 Hz, 1H), 4.82 (d, = 2.0 Hz, 2H), 3.94 (s, 3H), 2.60 (s, 3H), 2.55 (t, = 2.0 Hz, 1H); MS (ESI+) m/z 389.1 (M+H)+; 99% purity, RT 2.34 min (Method 8).

According to the analysis of related databases, 7170-01-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; SHIRE HUMAN GENETIC THERAPIES, INC.; MILLER, Thomas; PAPAIOANNOU, Nikolaos; (243 pag.)WO2018/144620; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics