反应详情

温度

90 °C

A round-bottomed flask was charged with 4,5-dibromothiophene-2-carbonitrile (534 mg, 2.00 mmol), 4-chloro-2-methylphenylboronic acid (818 mg, 4.80 mmol) and Pd(PPh3)4 (136 mg, 0.10 mmol). After degassed, dioxane (10 mL) and aqueous sodium carbonate (5 mL, 2M, 10 mmol) was added. The reaction mixture was heated to 90° C. The progress of the reaction was monitored by TLC. After the reaction was complete, 50 mL of water was added, and the reaction mixture was extracted with ethyl acetate. The organic phase was dried over anhydrous sodium sulphate and then concentrated. The residue was purified by flash chromatography (hexane:CH2Cl2=2:1). 0.60 g (84%) of product was obtained as clear oil.

1. customAfter degassed
2. extractionthe reaction mixture was extracted with ethyl acetate
3. dry with materialThe organic phase was dried over anhydrous sodium sulphate
4. concentrationconcentrated
5. customThe residue was purified by flash chromatography (hexane:CH2Cl2=2:1)