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. 39890-95-4, name is 2-Chloro-6-(trifluoromethyl)pyridine, molecular formula is C6H3ClF3N, 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. Application In Synthesis of 2-Chloro-6-(trifluoromethyl)pyridine
Step 1: Preparation of 6-trifluomethyl-pyridine-2-carboxylic acid methyl ester (2) To a solution of 2-chloro-6-trifluoromethyl-pyridine (2 g, 11.1 mmol, 1.0 eq) in MeOH (20 mL) was add Pd(OAc)2 (124 mg, 0.05 eq) and dppf (600 mg, 0.1 eq) under an atmosphere of nitrogen. Et3N (2.3 mL, 1.5 eq) was then added to the resulting orange solution. The reaction solution was then stirred under an atmosphere of carbon monoxide (40 psi) at 60 C. for 22 hr. Once the reaction completed, the mixture was filtered and the filtrate was concentrated in high vacuum. The residue was purified by column chromatography to afford the desired product. 1HNMR (400 MHz, CDCl3): delta 8.32 (d, J=8 Hz, 1H), 8.06 (t, J=8 Hz, 1H), 8.88 (d, J=8 Hz, 1H), 4.04 (s, 3H). LC-MS: m/z 206 (M+H)+.
With the rapid development of chemical substances, we look forward to future research findings about 39890-95-4.
Reference:
Patent; AGIOS PHARMACEUTICALS, INC; Konteatis, Zenon D.; Popovici-Muller, Janeta; Travins, Jeremy; Zahler, Robert; Cai, Zhenwei; Zhou, Ding; US2015/18328; (2015); A1;,
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