Dimethyl fluoromalonate
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Dimethyl fluoromalonate 속성
- 끓는 점
- 76 °C
- 밀도
- 1.4g/ml
- 굴절률
- 1.4032
- 인화점
- 111-112°C/45mm
- 산도 계수 (pKa)
- 10.35±0.46(Predicted)
- 물리적 상태
- 고체
- 물리적 상태
- 단단한 모양
- 색상
- Colourless to off-white / liquid
- BRN
- 1768414
- CAS 데이터베이스
- 344-14-9(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | T,C | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 34 | ||
| 안전지침서 | 26-36/37/39-45-23 2636/37/3945-20 | ||
| 유엔번호(UN No.) | 3265 | ||
| 위험 참고 사항 | Toxic | ||
| 위험 등급 | 8 | ||
| 포장분류 | II | ||
| HS 번호 | 29171900 |
Dimethyl fluoromalonate C화학적 특성, 용도, 생산
화학적 성질
white to light yellow crystal powder용도
Dimethyl 2-fluoromalonate is used as an intermediate in organic synthesis.제조 방법
synthesis of dimethyl 2-fluoromalonate: Dimethyl malonate (19.8 g, 0.15 mol) and Cu(NO3)2·2.5H2O (3.50 g, 15 mmol) were dissolved in acetonitrile (85 mL), the mixture was cooled to 0–5 °C and stirred at 650 rpm using an overhead stirrer. After purging the system with N2 for 5 minutes, fluorine gas (20% v/v in N2, 50 mL min-1 , 170 mmol) was introduced into the reaction mixture for 7 h. After purging with nitrogen for 20 minutes, the solvent was removed in vacuo and the residue was partitioned between water (30 mL) and ethyl acetate (20 mL). The aqueous phase was extracted with ethyl acetate (2 × 20 mL) and the combined organic layer was washed with saturated brine (20 mL). After drying over sodium sulphate, the solvent was evaporated under reduced pressure to give dimethyl 2-fluoromalonate (21.8 g, 97% yield, 95% purity) as a colourless oil;IR (neat, cm-1 ) 2962, 1748, 1438, 1250, 1206, 1112, 1016; δH (CDCl3, 400 MHz) 3.85 (6H, s, CH3), 5.31 (1H, d, 2 JHF 48.0, CHF); δF (CDCl3, 376 MHz): -195.73 (d, 2 JHF 48.0, CH–F); δC (CDCl3, 100 MHz) 53.48 (CH3), 85.19 (d, 1 JCF 197.2, C–F), 164.39 (d, 2 JCF 24.0, CvO); m/z (EI+ ) 150 (3%, [M]+ ), 119 (42%, [M-OMe]+ ), 91 (73%, [M-COOMe]+ ), 59 (100%, [COOMe]+ ).
Dimethyl fluoromalonate 준비 용품 및 원자재
원자재
준비 용품
Dimethyl fluoromalonate 공급 업체
글로벌( 203)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 |
ivan@atkchemical.com | China | 32480 | 60 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 |
admin@nexconn.com | China | 10248 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 |
sales@chemdad.com | China | 39916 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 |
sales@alchempharmtech.com | United States | 63711 | 58 |
| Wuhan Chemwish Technology Co., Ltd | 027-67849912 |
sales@chemwish.com | CHINA | 10828 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49390 | 58 |
| SHANGHAI T&W PHARMACEUTICAL CO., LTD. | +86-021-61551413 +8618813727289 |
contact@trustwe.com | China | 5738 | 58 |
| Allfluoro pharmaceutical co. ltd. | 021-26137118 +8615821363818 |
sales@allfluoro.com | China | 5791 | 58 |