Some common heterocyclic compound, 7051-16-3, name is 1-Chloro-3,5-dimethoxybenzene, molecular formula is C8H9ClO2, 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. COA of Formula: C8H9ClO2
General procedure: A THF solution of methyl magnesium bromide (1.59 mL, 0.94 M, 1.5 mmol) was added to a mixtureof FeF3 (5.7 mg, 0.050 mmol) and1,3-bis(2,6-diisopropylphenyl)imidazolinium chloride (64.4 mg, 0.15 mmol) in2.0 mL of THF at 0 C. The substrate aryl chloride, 1-chloro-4-methoxybenzene (143 mg, 1.0 mmol), and undecane werethen added at room temperature. The mixture was stirred at 80 C for 24 h.After cooling to room temperature, an aliquot of the reaction mixture was filtered through a Florisil pad. The product yield was determined by GC analysis (92% yield) using undecane as an internal standard. To avoid loss ofproducts, isolation was performed in the large-scale experiment using 5.6 mmolof the starting aryl chloride. After the reaction was performed at 80 C for 84 h, saturated aqueous sodium potassium tartrate and aqueous HCl (1 N) wereadded. The aqueous layer was extracted with ether four times. The organic layerwas combined, washed with brine, dried over Na2SO4, andfiltered through a Florisil pad. After removal of the solvent, the crudeproduct was purified by silica gel column chromatography using pentane as theeluent (Rf = 0.06) and subsequent GPC to obtain the title compound (78.7 mg, 11%) as a colorless oil.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 7051-16-3, its application will become more common.
Reference:
Article; Agata, Ryosuke; Takaya, Hikaru; Matsuda, Hiroshi; Nakatani, Naoki; Takeuchi, Katsuhiko; Iwamoto, Takahiro; Hatakeyama, Takuji; Nakamura, Masaharu; Bulletin of the Chemical Society of Japan; vol. 92; 2; (2019); p. 381 – 390;,
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