3-METHYL-2-NITRO-3H-IMIDAZOLE-4-CARBOXYLICACID메틸에스테르

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H332：흡입하면 유해함

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

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

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

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

3-METHYL-2-NITRO-3H-IMIDAZOLE-4-CARBOXYLICACID메틸에스테르 화학적 특성, 용도, 생산

• Synthesis

  1-methyl-2-nitro-1H-imidazole-5-carboxylic acid methyl ester 1c (50g, 0.27mol) was dissolve in 500mL tetrahydrofuran, followed by dropwise add methanol (13g, 0.4mol, 1.5eq) at 0 ℃. A solution of lithium hydride in tetrahydrofuran (2M, 202 mL, 1.5 eq) was added, and the reaction was incubated at 0 ℃ for 1 hour. The reaction solution was quenched by adding 500 mL of water, and extracted with ethyl acetate (500 mL × 3). The organic phases were combined, dried over anhydrous sodium sulfate, filtered, and concentrated under reduced pressure. The residue was added with dichloromethane (200 mL) and filtered to obtain 3-Methyl-2-nitro-3H-imidazole-4-carboxylic acid methyl ester(31 g, 0.2 mol, yellow solid), yield: 73%.
  

3-METHYL-2-NITRO-3H-IMIDAZOLE-4-CARBOXYLICACID메틸에스테르 공급 업체

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