As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 112110-07-3, name is 5-(Trifluoromethyl)pyridin-3-amine, molecular formula is C6H5F3N2, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. Safety of 5-(Trifluoromethyl)pyridin-3-amine
To a mixture of 2-(4-bromo-2,5-difluoro-phenyl)acetic acid (9, 2.16 g, 8.60 mmol), 5-(trifluoromethyl)pyridin-3-amine (10, 1.39 g, 8.57 mmol) and pyridine (2.09 ml, 25.8 mmol) in ethyl acetate (85 ml) was added slowly propylphosphonic anhydride (50 wt % solution in ethyl acetate, 10.1 ml, 17.2 mmol). The reaction mixture was allowed to stir at room temperature for 3 hours. The reaction was diluted with ethyl acetate and was washed with saturated aqueous ammonium chloride, water and brine. The organic layer was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to provide 3.29 g (97% yield) of compound 11 that was used in the next step without further purification. MS ESI [M+H+]+=397.05.
With the rapid development of chemical substances, we look forward to future research findings about 112110-07-3.
Reference:
Patent; Plexxikon Inc.; Lin, Jack; Ibrahim, Prabha N.; Albers, Aaron; Buell, John; Guo, Zuojun; Pham, Phuongly; Powers, Hannah; Shi, Songyuan; Spevak, Wayne; Wu, Guoxian; Zhang, Jiazhong; Zhang, Ying; (132 pag.)US2017/267660; (2017); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem