4-ブロモベンゾニトリル

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

  H319：強い眼刺激

  H412：長期的影響により水生生物に有害

• 注意書き

  P264：取扱い後は皮膚をよく洗うこと。

  P264：取扱い後は手や顔をよく洗うこと。

  P273：環境への放出を避けること。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P301+P312：飲み込んだ場合：気分が悪い時は医師に連絡する 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。

4-ブロモベンゾニトリル 価格

MSDS Information

• 4-Bromobenzoic acid nitrile

4-ブロモベンゾニトリル 化学特性,用途語,生産方法

• 外観

  白色～うすい黄褐色、結晶性粉末～粉末

• 用途

  有機合成原料。

• 化学的特性

  4-Bromobenzonitrile is white to light yellow powder or flakes

• 使用

  4-Bromobenzonitrile is used as reagents and solvents. Reaction of 2-propanol, 4-bromobenzonitrile, and NaH in the presence of 1.5 mol % Pd2(dba)3 and 3 mol % (S)-(-)2,2?-bis(di-p-tolylphosphino)- 1,1?-binaphthyl at 50°C afforded 4-isopropoxy- benzonitrile in 80% isolated yield. The synthesis of 4-cyanobiphenyl at room temperature in a flow injection microreactor, using a supported catalyst, without the addition of a base gave a product yield of 67±7% (n=6). This was achieved by injecting 4-bromobenzonitrile. The 3-arylation of 2,5-dimethylthiophene with 4-bromopropiophenone, 4-trifluoromethylbromobenzene or 4-bromobenzonitrile gave 3-5 in only 38-50% yields in Palladium-catalysed direct 3-or 4-arylation of thiophene derivatives using aryl bromides.

• Synthesis Reference(s)

  Tetrahedron Letters, 27, p. 1925, 1986 DOI: 10.1016/S0040-4039(00)84413-5

• 合成

  To a 10 mL glass tube aryl halide (1 mmol), K4FeCN6 (0.6 mmol,220 mg), K2CO3 (1.5 mmol, 207 mg), catalyst (10 mg), and 2 mL DMF were added and the mixture was stirred for appropriate reaction time at 120 ℃ under argon atmosphere. The progress of the reaction was monitored by GC analysis. After completion of the reaction, the reaction mixture was washed with 5 mL water, and the crude product was isolated using dichloromethane (5× 1 mL). Organic extracts were combined, evaporated, and purified by flash chromatography using hexane/EtOAc to give 4-Bromobenzonitrile.
  

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