ETHYL [BIS(2,2,2-TRIFLUOROETHOXY)PHOSPHINYL]ACETATE

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

ETHYL [BIS(2,2,2-TRIFLUOROETHOXY)PHOSPHINYL]ACETATE 화학적 특성, 용도, 생산

• 용도

  Ethyl [Bis(2,2,2-trifluoroethoxy)phosphinyl]acetate is a reagent used in the preparation of spiroketal EBC-23; an anticancer agent, scytonemin A; a novel calcium antagonist and other useful organic compounds.

• Synthesis

  To stirred solution of 18-crown-6 (4.40 g, 16.65 mmol), THF (20 mL), and bis (2,2,2-trifluoroethyl) phosphite (1) (0.55 mL, 3.75 mmol), KHMDS (8.0 mL, 4.00 mmol, 0.5 M in toluene) was added via syringe in a dropwise manner at -78 oC. Ethyl chloroacetate (0.35 mL, 3.30 mmol) was added to the flask after 15 min. The reaction flask was allowed to warm to room temperature and stir for 4 hr. After standard workup procedure, the crude product was then purified by flash column chromatography (2:1-1:1 hexanes:EtOAc, Rf = 0.25 in 2:1 hexanes:EtOAc) yielding Ethyl [bis(2,2,2-trifluoroethoxy)phosphinyl]acetate (808 mg, 2.43 mmol, 73.4%) as a yellow syrup.

ETHYL [BIS(2,2,2-TRIFLUOROETHOXY)PHOSPHINYL]ACETATE 준비 용품 및 원자재

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