Some common heterocyclic compound, 113170-72-2, name is 3-Bromo-5-(trifluoromethyl)benzene-1,2-diamine, molecular formula is C7H6BrF3N2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. Recommanded Product: 113170-72-2
Na2S2O5 (1.64 g, 8.62 mmol) and 4-fluoro-benzaldehyde (891 mg, 7.18 mmol) were added to a sol. of 3-bromo-5-trifluoromethyl-l,2-diaminobenzene (1.65 g, 6.47 mmol) – -in DMA (40 ml). The r.m. was stirred overnight at 70 0C. Then, the r.m. was cooled to r.t. and poured into water. The solid was filtered off, washed with water, and suspended in DIPE and some drops of 2-propanol. The resulting solid was filtered off, washed with DIPE, and dried. Yield: 1.95 g of intermediate 64 (84 %).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 113170-72-2, its application will become more common.
Reference:
Patent; ORTHO-MCNEIL-JANSSEN PHARMACEUTICALS, INC; GIJSEN, Henricus, Jacobus, Maria; VELTER, Adriana, Ingrid; MACDONALD, Gregor, James; BISCHOFF, Francois, Paul; WU, Tongfei; VAN BRANDT, Sven, Franciscus, Anna; SURKYN, Michel; ZAJA, Mirko; PIETERS, Serge, Maria, Aloysius; BERTHELOT, Didier, Jean-Claude; DE CLEYN, Michel, Anna, Jozef; OEHLRICH, Daniel; WO2010/89292; (2010); A1;,
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