New discoveries in chemical research and development in 2021. As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world.956317-36-5, name is 5-Methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. 956317-36-5
To a stirred solution of 7(184 mg,0.86 mmol) in DMF (5 ml) was added 92) (174 mg, 0.86 mmol), EDCI (198 mg, 1.03 mmol), HOAt (140 mg, 1.03 mmol), and N-methylmorpholine(0.5 ml, 4.30 mmol), the resulting mixture was stirred for 16 h at room temperature. The reaction mixture was diluted with EtOAc, sat.NaHCO3 aq, and organic phase was separated, the aqueous mixture was extracted with EtOAc. The organic phase and extracts were combined, dried over Na2SO4, and concentrated in vacuo. The residue was chromatographed on SiO2(Hexane- EtOAc = 2 : 1) to give 8 (300mg,87%) as a colorless oil. The 1H NMR and 13C NMR data for this compound was extremely complicated due to its existence as rotamers.1H NMR (500 MHz, CDCl3):delta 7.92-7.75 (3H, m), 7.33-7.10 (2H, m), 4.87-2.90 (7H, m), 2.41 (3H, s),2.19-1.88 (1H, m), 1.71-1.37 (10H, m), 1.31-1.10 (3H, m); 13C NMR(125 MHz, CDCl3): delta 169.59, 169.43, 168.98, 168.76, 154.89, 154.69,154.44, 138.16, 138.11, 137.81, 135.36, 135.24, 133.65, 133.57, 133.30, 130.12,129.52, 129.44, 129.03, 128.93, 128.27, 128.11, 127.95, 122.22, 122.13, 121.90,121.83, 79.54, 79.39, 52.02, 51.30, 48.16, 47.53, 46.39, 46.16, 45.49, 45.10,44.76, 44.41, 43.40, 42.96, 42.43, 42.03, 41.53, 41.16, 39.44, 36.85, 36.40,35.81, 35.02, 34.76, 34.47, 33.89, 29.40, 28.24, 28.16, 20.73, 20.67, 19.76,19.5517.96, 17.57, 17.33, 16.67; IR (neat): 1683, 1635 cm-1; MS (EI)m/z 399 (M+);HRMS (EI) calcd for C21H29N5O3:399.2270 (M+), found: 399.2273; [alpha]17 D -34.9 (c0.9, CHCl3).
We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 5-Methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid ,and how the biochemistry of the body works.
Reference:
Article; Minehira, Daisuke; Takahara, Satoyuki; Adachi, Isao; Toyooka, Naoki; Tetrahedron Letters; vol. 55; 42; (2014); p. 5778 – 5780;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics