In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 920979-05-1, name is 5-(Trifluoromethyl)-1H-pyrrolo[3,2-b]pyridine-2-carboxylic acid, the common compound, a new synthetic route is introduced below. Safety of 5-(Trifluoromethyl)-1H-pyrrolo[3,2-b]pyridine-2-carboxylic acid
19.3 ethyl 5-trifluoromethylpyrrolo[3,2-b]pyridine-2-carboxylate; 1 ml (18.71 mmol) of concentrated sulfuric acid is added to a solution of 0.2 g (0.87 mmol) of 5-trifluoromethyl-pyrrolo[3,2-b]pyridine-2-carboxylic acid, obtained in step 19.2, in 10 ml of ethanol. The solution is refluxed for 20 hours and then cooled and concentrated under reduced pressure. The resulting residue is then taken up in 50 ml of dichloromethane and washed successively with 20 ml of saturated aqueous sodium hydrogen carbonate solution, 40 ml of water and 20 ml of saturated aqueous sodium chloride solution, dried over sodium sulfate and then concentrated under reduced pressure. 0.19 g of product is obtained, and is used without further purification in the following step.
The synthetic route of 920979-05-1 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; SANOFI-AVENTIS; US2008/125459; (2008); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem