Isopropyl 2-(3-nitrobenzylidene)acetoacetate

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

• 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.

Isopropyl 2-(3-nitrobenzylidene)acetoacetate 화학적 특성, 용도, 생산

• Synthesis

  A preparation method of isopropyl 2-(3-nitrobenzylidene)acetoacetate comprises the following steps: carrying out condensation reaction on 3-nitrobenzaldehyde and isopropyl acetoacetate as initial raw materials by using an organic solvent as a solvent in the presence of catalysts acetic acid and piperidine for 2-8 hours; after carrying out vacuum concentration on the filtrate at 80 ℃ to 2/3-3/4 by volume, cooling to -5-5 ℃ while stirring to crystallize overnight; and filtering, and recrystallizing with isopropanol to finally obtain the isopropyl 2-(3-nitrobenzylidene)acetoacetate.

Isopropyl 2-(3-nitrobenzylidene)acetoacetate 준비 용품 및 원자재

Isopropyl 2-(3-nitrobenzylidene)acetoacetate 공급 업체

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