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. 7411-23-6, name is 3,5-Dibromo-1H-1,2,4-triazole, This compound has unique chemical properties. The synthetic route is as follows., 7411-23-6
In a 250 mL round bottomed flask sodium hydride (60% dispersion in mineral oil) (264 mg, 6.61 mmol) was added to a colorless solution of 3,5-dibromo-lH-l,2,4-triazole (lnt-1, 1 g, 4.41 mmol) in DMF (22 ml). The resulting suspension was stirred at room temp during 30 min and 1,1,1,3,3,3-hexadeuterio-2-bromopropane (683 mg, 5.29 mmol) was added and the reaction was stirred at 40C over night.The reaction mixture was poured into 50 mL H20 and extracted with EtOAc (3 x 50 mL). The organic layers were washed with sat NaCl (3 x 50 mL), dried over MgS04 and concentrated in vacuo. The title compound was isolated as a colourless liquid (644 mg, 2.34 mmol, 53.1 % yield). MS (ES+) m/z 275.9 [(M+H)+].
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Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; BARTELS, Bjoern; BERCHTOLD, Stefan; GALLEY, Guido; GOERGLER, Annick; JAKOB-ROETNE, Roland; KRUMMENACHER, Daniela; LIMBERG, Anja; NEIDHART, Werner; RATNI, Hasane; REUTLINGER, Michael; RODRIGUEZ SARMIENTO, Rosa Maria; SCHNIDER, Christian; (309 pag.)WO2018/87018; (2018); A1;,
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