Some tips on 2-Bromo-5-(trifluoromethyl)aniline

Synthetic Route of 454-79-5, 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. 454-79-5 name is 2-Bromo-5-(trifluoromethyl)aniline, This 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.

A resealable tube was charged with 2-bromo-5- (trifluoromethyl)aniline (1.00 g, 4.16 mmol), 1- dimethylamino-2-propyne (0.520 g, 6.20 mmol), PdCl2(PPh3J2 (0.15 g, 0.21 mmol), copper iodide (0.80 mg, 0.42 mmol), diisopropylethylamine (1.0 mL) and acetonitrile (3.0 mL) . The system was purged with argon, the tube sealed and the mixture stirred at room temperature for 20 h. The reaction EPO mixture was filtered through celite and concentrated. The residue was purified via column chromatography on silica gel (gradient elution with 0-10% methanol-dichloromethane) to afford 2- (3-dimethylamino-l-propynyl) -5- (trifluoromethyl)aniline as a brown oil. MS m/z = 243 [M+H]+. CaIc’d for C12H13F3N2: 242.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-Bromo-5-(trifluoromethyl)aniline, and friends who are interested can also refer to it.

Reference:
Patent; AMGEN INC.; WO2006/44823; (2006); A2;,
Bromide – Wikipedia,
bromide – Wiktionary