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. 873107-98-3, name is 5-Iodo-2-(trifluoromethyl)pyridine. This compound has unique chemical properties. The synthetic route is as follows. Recommanded Product: 5-Iodo-2-(trifluoromethyl)pyridine
In a microwave vial, 3-ethylsulfanyl-2-(1 H-1 ,2,4-triazol-3-yl)-5-(trifluoromethyl)pyridine (274 mg, 1 .0 mmol) and 5-iodo-2-(trifluoromethyl)pyridine (409 mg, 1 .50 mmol) were dissolved in dry DMF (3 ml) and potassium carbonate (276 mg, 2.00 mmol) was added. The vial was closed and the mixture was heated in the microwave at 140C for 6 h. The reaction mixture was partitioned between EtOAc and brine/water (1/1 ). After washing and separation, the organic layer was washed with water/brine (1/1 ), dried over sodium sulfate and concentrated. The crude product was purified over silica by flash column chromatography (5 to 75% gradient of EtOAc in heptane). The fractions containing product were combined and concentrated. The crude product was again purified over silica by flash column chromatography (0 to 2.5% gradient of MeOH in CH2CI2) to afford the compound P1 .1 (221 mg) as a solid, mp 174.5-175.5C. LCMS (method 2): 420 (M+H)+, retention time 3.85 min. H-NMR (CDCI3, ppm) 1 .45 (3H), 3.07 (2H), 7.91 (1 H), 7.93 (1 H), 8.38 (1 H), 8.79 (1 H), 8.87 (1 H), 9.26 (1 H).
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Reference:
Patent; SYNGENTA PARTICIPATIONS AG; MUEHLEBACH, Michel; TITULAER, Ruud; EMERY, Daniel; EDMUNDS, Andrew; STOLLER, Andre; JUNG, Pierre Joseph Marcel; JEANGUENAT, Andre; BUCHHOLZ, Anke; (82 pag.)WO2016/12395; (2016); A1;,
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