Electric Literature of 79603-02-4, A common heterocyclic compound, 79603-02-4, name is 2-Bromo-6-nitrobenzonitrile, molecular formula is C7H3BrN2O2, 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.
Intermediate 11: 2-Nitro-6-cyclopropylbenzonitrile; [0176] 2-Bromo-6-nitrobenzonitrile (0.56g), cyclopropyl boronic acid (0.63g), palladium (II) acetate (0.055g), tricyclohexylphosphine (0.135g) and potassium phosphate tribasic (2.36g) were dissolved in a mixture of toluene (15mL) and water (3mL). The mixture was heated at 100C under nitrogen for 18 hours. The mixture was cooled and then partitioned between water and DCM. The organic solution was separated, dried with magnesium sulfate, filtered and the solvent was removed under vacuum. The residue was purified by flash chromatography on silica, eluting with a mixture of ethyl acetate and cyclohexane. The fractions containing the desired product were combined and evaporated to give the title compound as a light yellow solid (0.5 lg).NMR (CDCI3) delta 8.05 (d, IH), 7.64 (t, IH), 7.27 (d, IH), 2.52-2.45 (m, IH), 1.33-1.26 (m, 2H), 0.91-0.85 (m, 2H)
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; ZAFGEN CORPORATION; DYKE, Hazel, Joan; PALLIN, Thomas, David; CRAMP, Susan, Mary; WO2012/103333; (2012); A1;,
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