Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 672-41-3, name is 6-(Trifluoromethyl)pyrimidin-4-amine. This compound has unique chemical properties. The synthetic route is as follows. name: 6-(Trifluoromethyl)pyrimidin-4-amine
A sample of 6-(trifluoromethyl)pyrimidin-4-amine (73.7 mg, 0.45 mmol, CAS number: [672-41-3]) and 2-bromo-1-(5-cyclopropyl-3-ethylsulfonyl-2-pyridyl)ethanone (150 mg, 0.45 mmol) were dissolved in acetonitrile (3 mL) and the resulting mixture stirred for 1 h at 150C in a Microwave system. LCMS showed the formation of product after this time. The reaction mixture concentrated in vacuo, and the residue obtained dissolved in dichloromethane and washed with saturated aqueous NaHC03. The aqueous layer back-extracted (2 times) with dichloromethane and the combined organic layers washed with NH4OH 1 N, brine, dried over Na2S04 and concentrated in vacuo.. The crude product was purified by combi flash chromatography with a column of 12 g and a gradient dichloromethane +0-20% ethyl acetate. The product so obtained was triturated with ethyl acetate,to give the title compound as white solid LCMS (method 1 ); Rt= 0.98 min, [M+H] 397 H NMR (400 MHz, CHLOROFORM-c/) delta ppm 0.87 – 0.94 (m, 2 H) 1.18 – 1.24 (m, 2 H) 1.34 (t, J=7.34 Hz, 3 H) 2.03 – 2.12 (m, 1 H) 3.84 (q, J=7.34 Hz, 2 H) 7.95 (s, 1 H) 8.10 (d, J=2.20 Hz, 1 H) 8.31 (s, 1 H) 8.68 (d, J=2.20 Hz, 1 H) 9.15 (s, 1 H)
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Reference:
Patent; SYNGENTA PARTICIPATIONS AG; EDMUNDS, Andrew; JEANGUENAT, Andre; JUNG, Pierre Joseph Marcel; MUEHLEBACH, Michel; (150 pag.)WO2016/71214; (2016); A1;,
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