2-chloro-5-methylpyridin-4-amine

2-chloro-5-methylpyridin-4-amine 구조식 이미지
카스 번호:
79055-62-2
상품명:
2-chloro-5-methylpyridin-4-amine
동의어(영문):
2-Chloro-5-Methyl-pyridin-4-ylaMine;Fampridine Impurity 174;2-chloro-5-methylpyridin-4-amine;2-Chloro-5-Methyl-4-pyridinaMine;2-Chloro-4-amino-5-methylpyridine;4-aMino-2-chloro-5-Methylpyridine;2-Chloro-5-methyl pyridine-4-amine;4-PYRIDINAMINE, 2-CHLORO-5-METHYL-;2-Chloro-5-methylpyridin-4-amine98%;2-Chloro-5-methylpyridin-4-amine 98%
CBNumber:
CB92468371
분자식:
C6H7ClN2
포뮬러 무게:
142.59
MOL 파일:
79055-62-2.mol

2-chloro-5-methylpyridin-4-amine 속성

녹는점
115℃
끓는 점
310.1±37.0 °C(Predicted)
밀도
1.260±0.06 g/cm3(Predicted)
저장 조건
under inert gas (nitrogen or Argon) at 2–8 °C
물리적 상태
가루
산도 계수 (pKa)
5.11±0.42(Predicted)
색상
회백색
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
HS 번호 2933399990
그림문자(GHS): GHS hazard pictograms
신호 어: Warning
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고 GHS hazard pictograms
예방조치문구:
P260 분진·흄·가스·미스트·증기·...·스프레이를 흡입하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P301+P312 삼켜서 불편함을 느끼면 의료기관(의사)의 진찰을 받으시오.

2-chloro-5-methylpyridin-4-amine C화학적 특성, 용도, 생산

Synthesis

2-chloro-5-methylpyridin-4-amine was synthesised by reaction with 2-chloro-5-methyl-4-nitropyridine 1-oxide. The synthesis steps are as follows:
A glass pressure reactor with cross-beam stirrer was charged under argon with 29 g (153.788 mmol) of 2-chloro-5-methyl-4-nitro-1-oxidopyridin-1-ium and 2.9 g of hydrogenation catalyst (0.8% Pt and 0.6% Mo on activated carbon (D505A-105 0.8% Pt+0.6% Mo on carbon powder, BASF) and 320 ml of ethanol were added. The reactor was closed and inertized three times, each time with 3 bar argon overpressure. Hydrogenation was then carried out for 20 hours at 30℃, under a 3 bar hydrogen overpressure (conversion >98%). The reactor was inertized with argon and the reaction solution filtered through 10 g of kieselguhr. The filtrate was concentrated to dryness under reduced pressure. Yield: 23.0 g (quantitative, product still contained ethanol), purity: 97.5% (HPLC) (0051) MS (EIpos): m/z=143 [M+H]+ (0052) 1H-NMR (300 MHz, DMSO-d6): δ=1.96 (s, 3H), 6.16 (br s, 2H), 6.50 (s, 1H), 7.68 (s, 1H) In an analogous manner, a conversion of approx. 98% was achieved with a catalyst consisting of 0.8% Pt and 0.3% Mo on activated carbon. Use of 1% Pt+2% V on activated carbon achieved a conversion of approx. 87%.
2-chloro-5-methylpyridin-4-amine synthesis

2-chloro-5-methylpyridin-4-amine 준비 용품 및 원자재

원자재

준비 용품


2-chloro-5-methylpyridin-4-amine 공급 업체

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Fuxin Pharmaceutical
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contact@fuxinpharm.com China 10297 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
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joe@yuhengpharm.com CHINA 21149 58
ZHEJIANG CHEMPACIFIC CHEMICAL CO.,LTD
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