Analyzing the synthesis route of 16681-70-2

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Related Products of 16681-70-2, New Advances in Chemical Research in 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. 16681-70-2, name is 1H-[1,2,3]Triazole-4-carboxylic acid, molecular formula is C3H3N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.

To a stirred solution of 11-3 (0.2g, 0.36mMol), HOBT (0.05g, 0.4mMol), and IH-1, 2,3- triazole-4-carboxylic acid (0.05g, 0.4mMol) in anhydrous DMF (2mL) was added DIEA (0.18mL, 1. ImMoI) followed by EDC (0.08g, 0.4mMol). The solution was heated in the microwave reactor for 30 minutes at 800C. Solution was then treated with 0.5mL of acetic acid and was heated to 800C in the microwave reactor for lOmin. Upon cooling to room temperature, the solution was passed through a EPO syringe filter and purified on a C18 reverse phase HPLC to give 11-4 as a solid. Mass (M+l) calculated: 632.2742 observed: 632.274

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Reference:
Patent; MERCK & CO., INC.; WO2006/135627; (2006); A2;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics