Research speed reading in 2021. We’ll be discussing some of the latest developments in chemical about CAS: 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid 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-4-carboxylic acid
Preparation 1 1-Trityl-1H-1,2,3-triazole-4-carboxylic Acid 1H-1,2,3-Triazole-4-carboxylic acid (20.0 g, 177 mmol) was combined with DMF (200 mL, 2.6 mol) and pyridine (100 mL, 1.2 mol), and the resulting mixture was cooled to 0 C. Triphenylmethyl chloride (54 g, 190 mmol) was added in portions and the mixture was stirred at room temperature for 24 hours. The resulting slurry was filtered and the filter cake was washed with water (2*200 mL) and air-dried yield an off white solid (60 g). The solid was slurried in THF (800 mL) at room temperature for 4 hours, then filtered. The filtrate was then concentrated by rotary evaporation, yielding a thick oil. EtOAc (500 mL) was added and the volume was reduced to 200 mL. The resulting thick slurry was filtered and dried to yield the title compound (35.5 g).
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Reference:
Patent; Fleury, Melissa; Hughes, Adam D.; US2014/45906; (2014); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics