4-피리디나민,2-클로로-5-메틸-
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4-피리디나민,2-클로로-5-메틸- 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 |
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그림문자(GHS): | |||||||||||||||||||||||||||||
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신호 어: | Warning | ||||||||||||||||||||||||||||
유해·위험 문구: |
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예방조치문구: |
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4-피리디나민,2-클로로-5-메틸- 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%.
4-피리디나민,2-클로로-5-메틸- 준비 용품 및 원자재
원자재
준비 용품
4-피리디나민,2-클로로-5-메틸- 공급 업체
글로벌( 238)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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Zibo Hangyu Biotechnology Development Co., Ltd | +86-0533-2185556 +8617865335152 |
Mandy@hangyubiotech.com | China | 10986 | 58 |
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 |
info@fdachem.com | China | 20287 | 58 |
ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 |
ivan@atkchemical.com | China | 32951 | 60 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29884 | 58 |
Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 |
figo.gao@foxmail.com | China | 8497 | 58 |
Accela ChemBio Inc. | +1-858-6993322 |
info@accelachem.com | United States | 17254 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39894 | 58 |
Alchem Pharmtech,Inc. | 8485655694 |
sales@alchempharmtech.com | United States | 63687 | 58 |
Fuxin Pharmaceutical | +86-021-021-50872116 +8613122107989 |
contact@fuxinpharm.com | China | 10032 | 58 |
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 |
joe@yuhengpharm.com | CHINA | 21142 | 58 |