The origin of a common compound about 3-Amino-4-(trifluoromethyl)pyridine

According to the analysis of related databases, 175204-80-5, the application of this compound in the production field has become more and more popular.

Electric Literature of 175204-80-5, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 175204-80-5, name is 3-Amino-4-(trifluoromethyl)pyridine. This compound has unique chemical properties. The synthetic route is as follows.

Oxalylchloride (132 muL, 1.5 mmol) was added dropwise to a stirred suspension ofbenzoic acid 124 (350 mg, 1.0 mmol) and DMF (1 drop) in dry THF (20 mL) and thesolution was stirred at 20 C. for 2 h, then at 66 C. for 1 h. The solutionwas cooled to 20 C., then the solvent was evaporated and the residue dissolvedin dry pyridine (10 mL). 4-Trifluoromethyl-3-pyridinylamine (180mg, 1.1 mmol) was added and the solution stirred at 20 C. for 16 h. Thesolvent was evaporated and the residue suspended in ice/water (50 mL) for 1 h.The precipitate was filtered, washed with water (5 mL) and dried. The crudesolid was purified by column chromatography, eluting with EtOAc, to givebenzamide 140 (265 mg, 53%)

According to the analysis of related databases, 175204-80-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; THEBOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY; AUCKLANDUNISERVICES LIMITED; SUTPHIN, PATRICK; CHAN, DENISE; TURCOTTE, SANDRA; DENNY, WILLIAMALEXANDER; HAY, MICHAELPATRICK; GIDDENS, ANNACLAIRE; BONNET, MURIEL; GIACCIA, AMATO; (181 pag.)JP5789603; (2015); B2;,
Pyridine – Wikipedia,
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