Adding a certain compound to certain chemical reactions, such as: 29578-39-0, name is 1-Bromo-3-fluoro-5-methoxybenzene, belongs to ethers-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 29578-39-0, Formula: C7H6BrFO
To a solution of 1-bromo-3-fluoro-5-methoxybenzene (15 g, 73.16 mmol), tris(2-methylphenyl)phosphane (1.781 g, 5.85 mmol) and ethyl acrylate (11.90 mL, 109.74 mmol) in TEA (135 mL) was added palladium(II) acetate (0.329 g, 1.46 mmol) under nitrogen gas atmosphere at room temperature, and the mixture was stirred at 90C for 2 days. The solvent was evaporated under reduced pressure, the residue was diluted with water, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and brine, and dried over magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography to give ethyl (E)-3-(3-fluoro-5-methoxyphenyl)acrylate (14.2 g, 63.3 mmol, 87%) as a colorless oil.
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Reference:
Patent; TAKEDA PHARMACEUTICAL COMPANY LIMITED; YAMAMOTO, SATOSHI; SHIRAI, JUNYA; WATANABE, HIROYUKI; FUKUMOTO, SHOJI; ODA, TSUNEO; TOKUHARA, HIDEKAZU; TOMATA, YOSHIHIDE; ISHII, NAOKI; TAWADA, MICHIKO; KOUNO, MITSUNORI; OCHIDA, ATSUKO; IMADA, TAKASHI; FUKASE, YOSHIYUKI; YUKAWA, TOMOYA; (719 pag.)TW2016/2105; (2016); A;,
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