4-CYANO-2-METHOXYBENZALDEHYDE

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H318：눈에 심한 손상을 일으킴

• 예방조치문구

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

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

4-CYANO-2-METHOXYBENZALDEHYDE 화학적 특성, 용도, 생산

• Synthesis

  79 g (370 mmol) of sodium metaperiodate are added in portions to a vigorously stirred solution of 48 g (185 mmol) of tert-butyl (2E)-3-(4-cyano-2-methoxyphenyl)acrylate, 207 mg (0.81 mmol) of osmium tetroxide and 1.4 g (6.14 mmol) of benzyltriethylammonium chloride in 750 ml of water/THF (2:1), keeping the reaction temperature below 30° C. The solution is stirred at RT for a further 1 h. Water (2000 ml) is added, and the mixture is filtered. The remaining solid is dissolved in ethyl acetate and washed with a saturated sodium chloride solution. The organic phase is dried over magnesium sulfate and concentrated. The residue is stirred with petroleum ether. 21.18 g (71% of theory) of 4-cyano-2-methoxybenzaldehyde is obtained as a white solid.
  

4-CYANO-2-METHOXYBENZALDEHYDE 준비 용품 및 원자재

4-CYANO-2-METHOXYBENZALDEHYDE 공급 업체

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