Related Products of 76153-06-5, A common heterocyclic compound, 76153-06-5, name is 5-Bromo-3-methylbenzene-1,2-diamine, molecular formula is C7H9BrN2, its 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.
Isothiocyanatomethane (0.055 g, 0.746 mmol) in N,N-dimethylformamide (1.0 mL) was added dropwise slowly to a stirred solution of 5-bromo-3-methylbenzene-l,2-diamine (0.150 g, 0.746 mmol) in N,N-dimethylformamide (1.5 mL) at 0 0C. The cold bath was removed, the reaction mixture was capped and stirred at room temperature for 48 h. N-(3-Dimethylaminopropyl)-N’-ethylcarbodiimide hydrochloride (0.157 g, 0.821 mmol) was added and the reaction mixture capped and heated at 40 0C overnight. The resulting mixture was diluted with methanol, filtered and purified using reverse-phase preparatory HPLC (10-50 % acetonitrile + 0.1 % TFA in H2O + 0.1 % TFA, over 30 min). Fractions containing the desired product were combined and most of the solvent removed under reduced pressure. Acetonitrile was added and the resulting mixture loaded on a Strata ion exchange column. The column was washed successively with water, acetonitrile, methanol and 5 % ammonium hydroxide in methanol. The product eluted with the 5% ammonium hydroxide in methanol and was concentrated under reduced pressure and dried under high vacuum to give the desired product (0.128 g, 0.53 mmol, 72 % yield) as a slightly yellow waxy solid. MS (ESI) m/z 240 [M]+, 242 [M+2]+.
The synthetic route of 76153-06-5 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; SIGNAL PHARMACEUTICALS, LLC; ELSNER, Jan; HARRIS, Roy, L.; LEE, Branden; MORTENSEN, Deborah; PACKARD, Garrick; PAPA, Patrick; PERRIN-NINKOVIC, Sophie; RIGGS, Jennifer; SANKAR, Sabita; SAPIENZA, John; SHEVLIN, Graziella; TEHRANI, Lida; XU, Weiming; ZHAO, Jingjing; PARNES, Jason; MADAKAMUTIL Loui; FULTZ Kimberly; NARLA, Rama K.; WO2010/62571; (2010); A1;,
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