3-ブロモ-5-フルオロトルエン

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H315：皮膚刺激

  H319：強い眼刺激

  H335：呼吸器への刺激のおそれ

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。

  P304+P340：吸入した場合：空気の新鮮な場所に移し、呼吸しやすい 姿勢で休息させること。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

  P405：施錠して保管すること。

3-ブロモ-5-フルオロトルエン 価格

3-ブロモ-5-フルオロトルエン 化学特性,用途語,生産方法

• 使用

  3-Bromo-5-fluorotoluene is an important halotoluene compound used as a structural component of many organic heterocyclic compounds. It has reactive groups, bromine and fluorine atoms, which can be used in substitution reactions.

• 合成

  2-Bromo-6-fluoro-4-methylaniline (11.2 g, 55 mmol), diluted hydrochloric acid (28.5 mL, 6 M) and acetonitrile (300 mL) were added to a 500 mL single-neck flask, then to the mixture in flask was added dropwise slowly a solution of sodium nitrite (5.69 g, 82.4 mmol) in water (40 mL) at 0 °C. After the addition, the reaction mixture was stirred at 0 °C for 1 h; then a solution of potassium iodide (18.3 g, 110 mmol) was added to the flask in water (30 mL). After the addition, the mixture was stirred at 0 °C for 0.5 h, then stirred at rt overnight. The reaction mixture was added saturated aqueous sodium sulfite (300 mL), and the resulting mixture was concentrated in vacuo to remove acetonitrile. The residue was extracted with ethyl acetate (100 mL x 2), combining the organic layers. The combined organic layers were washed with saturated brine (100 mL), dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated in vacuo. The residue was purified by silica-gel column chromatography (ethyl acetate/petroleum ether (v/v) = 1/100) to give 1-Bromo-3-fluoro-5-methylbenzene as a white solid (13.2 g, 76%).

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