These common heterocyclic compound, 16681-65-5, name is 1-Methyl-1H-1,2,3-triazole, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. name: 1-Methyl-1H-1,2,3-triazole
A solution of n-BuLi (0.37 mL, 0.92 mmol, 2.5 M solution in hexane) was added slowly to a solution of 1-methyl-1H-1,2,3-triazole (79.7 mg, 0.959 mmol) in THF (10 mL) at -50 C. After addition, stirring was continued for an additional 30 minutes at -50 C. and (4-chloro-2-methoxy-3-((3-(trifluoromethyl)azetidin-1-yl)methyl)quinolin-6-yl)(1,2-dimethyl-1H-imidazol-5-yl)methanone (Intermediate 52, 182 mg, 0.402 mmol) dissolved in THF (4 mL) was slowly added. An additional 2 mL of THF was used to complete the quantitative addition. The mixture was stirred at -50 C. for 10 minutes then warmed to room temperature and stirred for 18 hours. The solution was quenched with saturated aqueous NH4Cl solution. H2O was added and layers were separated. The aqueous layer was extracted with EtOAc and the combined organic extracts washed with brine, dried over MgSO4, filtered, evaporated in vacuo. The crude product was purified using flash column chromatography (0 to 7% MeOH-DCM) to provide the title compound. MS m/e 536.1 (M+H)+.
The synthetic route of 1-Methyl-1H-1,2,3-triazole has been constantly updated, and we look forward to future research findings.
Reference:
Patent; JOHNSON & JOHNSON; LEONARD, KRISTI A.; BARBAY, KENT; EDWARDS, JAMES P.; KREUTTER, KEVIN D.; KUMMER, DAVID A.; MAHAROOF, UMAR; NISHIMURA, RACHEL; URBANSKI, MAUD; VENKATESAN, HARIHARAN; WANG, AIHUA; WOLIN, RONALD L.; WOODS, CRAIG R.; FOURIE, ANNE; XUE, XIAOHUA; CUMMINGS, MAXWELL D.; MCCLURE, KELLY; TANIS, VIRGINIA; US2015/111870; (2015); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics