Synthetic Route of 7051-16-3, A common heterocyclic compound, 7051-16-3, name is 1-Chloro-3,5-dimethoxybenzene, molecular formula is C8H9ClO2, 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.
1.0 M solution of boron tribromide in DCM (12.00 mL, 11.49 mmol) was slowly added to a solution of 5-chloro-1,3-dimethoxybenzene 28 (1.00 g, 5.74 mmol) in DCM (10.00 mL) at -78 C. After reaction was allowed to gradually warm to room temperature, the mixture was stirred for 2 days until no starting material was observed by TLC. Reaction mixture was diluted with NaHCO3 (aq. sat.) (50.00 mL) and reaction product was extracted with DCM (3 x 50.00 mL). The combined organic extract was washed with NaCl(sat. aq.) (20.00 mL), dried over anhydrous Na2SO4, and filtered. Obtained supernatant was concentrated under reduced pressure and crude residue was purified by flash column chromatography using n-hexane/ethyl acetate (7:3) to give 5-chlororesorcinol 28b (0.80 g, 96%) as a brown residue. 1H NMR (400 MHz, CDCl3-d) deltaH 6.21 (s, 1H, ArH), 6.37 (d, 2H, J = 2.2 Hz, ArH).
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:
Article; Hossain, Mohammad Anwar; Sattenapally, Narsimha; Parikh, Hardik I.; Li, Wei; Rumbaugh, Kendra P.; German, Nadezhda A.; European Journal of Medicinal Chemistry; vol. 185; (2020);,
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