2-Chloro-4,5-diaminopyrimidine

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.

2-Chloro-4,5-diaminopyrimidine 화학적 특성, 용도, 생산

• Synthesis

  A mixture of 2-chloro-5-nitropyrimidin-4-amine (1.0 g, 5.7 mmol) and SnCl2·2H2O (5.2 g, 22.9 mmol) in EtOH (55 mL) under N2 was heated to 80 °C and stirred for two hours. The mixture was then concentrated under reduced pressure. EtOAc and Celite were added to the residue, and the mixture was basified with saturated Na2CO3 (aq.) to pH 9- 10. The mixture was filtered through a pad of Celite and washed with EtOAc. The organic layer was separated, washed with brine, dried (Na2SO4), and concentrated in a vacuum. The residue was purified on ISCO (20 g silica gel column, EtOAc/hexanes 0~100 per cent) to give 2-Chloro-4,5-diaminopyrimidine (0.41 g 49 per cent).

2-Chloro-4,5-diaminopyrimidine 준비 용품 및 원자재

2-Chloro-4,5-diaminopyrimidine 공급 업체

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