New discoveries in chemical research and development in 2021. Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 288-36-8, name is 1H-1,2,3-Triazole belongs to triazoles compound, it is a common compound, a new synthetic route is introduced below. Application In Synthesis of 1H-1,2,3-Triazole
Potassium carbonate (14.0 g, 101 .35 mmol) was added to solution of 2,3-dichloro-5- nitropyridine (10.0 g, 51 .82 mmol) in THF (60 mL) followed by addition of 2H-1 ,2,3-triazole (3.4 mL, 58.7 mmol). The resulting mixture was stirred at rt until reaction was deemed completed as judged by TLC (-16 h), then diluted with water (300 mL). The aqueous layer was extracted with EtOAc (2 x 300 mL), the organic layer was dried over sodium sulphate, filtered and (0326) concentrated under reduced pressure. The crude product was purified by column (0327) chromatography on silica (100-200 mesh), eluted at 20% EtOAc in p.ether which gave the title compound (7.0 g, 60%) as a solid with 99.42% LCMS purity. MS (ES+) 226.03 [M+H]+.
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Reference:
Patent; MEDIVIR AB; ALBERTELLA, Mark; OeBERG, Fredrik; (96 pag.)WO2018/141749; (2018); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics