トリフルオロメタンスルホン酸スカンジウム(ＩＩＩ)

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。

トリフルオロメタンスルホン酸スカンジウム(ＩＩＩ) 価格

トリフルオロメタンスルホン酸スカンジウム(ＩＩＩ) 化学特性,用途語,生産方法

• 外観

  白色〜ほとんど白色, 粒状又は塊

• 溶解性

  水にほとんど溶けない。

• 用途

  CC結合反応、有機合成用触媒

• 説明

  Scandium trifluoromethanesulfonate, commonly called Scandium(III) triflate, is a chemical compound with formula Sc(SO3CF3)3, a salt consisting of scandium cations Sc3+ and triflate SO3CF3? anions.
  Scandium(III) triflate is an extremely active, efficient, recoverable and reusable acylation catalyst. Its an important catalyst for the Friedel-Crafts acylation, Diels-Alder reactions and other carbon-carbon bond-forming reactions. It also stereochemically catalyzes the radical polymerization of acrylates. Scandium(III) triflate complex of (4′S,5′S)-2,6-bis[4′-(triisopropylsilyl)oxymethyl-5′-phenyl-1′,3′-oxazolin-2′-yl]pyridine has been employed as catalyst for the asymmetric Friedel-Crafts reaction between substituted indoles and methyl (E)-2-oxo-4-aryl-3-butenoates.

• 化学的特性

  White powder

• 使用

  Scandium(III) trifluoromethanesulfonate is widely used as a catalyst in hydrothiolation, selective two-electron reduction of oxygen by ferrocene derivatives and vinylogous Fridel-crafts alkylation of indoles and pyrrole in water. It is involved in the Mukaiyama aldol addition and stereochemically catalyzes the radical polymerization of acrylates. It acts as a Lewis acid catalyst and used in the synthesis of bullvalone via a stabilized sulfur ylide.

• 主な応用

  Scandium(III) triflate was used as a catalyst in:
  Hydrothiolation reaction of aromatic and aliphatic thiols.
  Selective two-electron reduction of O2 by ferrocene derivatives.
  Vinylogous Friedel-Crafts alkylation of indoles and pyrroles in water.
  Synthesis of β-cyanoketones.
  Combination with triethylsilane to reductively open functionalized pyranoside rings.
  The key steps of synthesis of bullvalone via a stabilized sulfur ylide.

• 反応性

  2. Water tolerant Lewis acid.
  4. Commonly used in a range of Lewis acid catalyzed reactions.
  6. Efficient metal source for Lewis acid catalyzed asymmetric reactions.
  8. Catalyzes Friedel-Crafts alkylation, acylation and related reactions.
  10. Catalyzes various domino- and multi-component processes.
  12. Catalyzes electrophilic additions of alpha-diazoesters with ketones.
  14. Catalyzes carbon insertion reactions.
  
  
  

• 一般的な説明

  Scandium(III) triflate is an extremely active, efficient, recoverable and reusable acylation catalyst. Its an important catalyst for the Friedel-Crafts acylation, Diels-Alder reactions and other carbon-carbon bond-forming reactions. It also stereochemically catalyzes the radical polymerization of acrylates. Scandium(III) triflate complex of (4′S,5′S)-2,6-bis[4′-(triisopropylsilyl)oxymethyl-5′-phenyl-1′,3′-oxazolin-2′-yl]pyridine has been employed as catalyst for the asymmetric Friedel-Crafts reaction between substituted indoles and methyl (E)-2-oxo-4-aryl-3-butenoates.

トリフルオロメタンスルホン酸スカンジウム(ＩＩＩ) 生産企業

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