Electric Literature of 689260-53-5, A common heterocyclic compound, 689260-53-5, name is 2-Bromo-5-iodo-1,3-dimethylbenzene, molecular formula is C8H8BrI, 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.
A mixture of 2-bromo-5-iodo-1,3-dimethylbenzene (300 mg, 0.965 mmol), 1-aminocyclopropane carboxylic acid (195 mg, 1.93 mmol), copper iodide (I) (37 mg, 0.194 mmol), and diazabicycloundecene (0.50 mL, 3.35 mmol) in dimethylacetamide (2.6 mL) was stirred at 120C for three hours under nitrogen atmosphere. The reaction mixture was purified by silica gel column chromatography (Wakosil C18, acetonitrile – water (0.1% formic acid)) to afford 1-((4-bromo-3,5-dimethylphenyl)amino)cyclopropane carboxylic acid (219 mg, 80%). MS(ESI) m/z = 284, 286 (M+H)+.
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.