4-Nitrobenzyl hydrogen malonate
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4-Nitrobenzyl hydrogen malonate 속성
- 녹는점
- 109 °C
- 끓는 점
- 455.8±30.0 °C(Predicted)
- 밀도
- 1.447±0.06 g/cm3(Predicted)
- 저장 조건
- Sealed in dry,Room Temperature
- 용해도
- 메탄올에 용해됨
- 물리적 상태
- powder to crystal
- 산도 계수 (pKa)
- 2.49±0.32(Predicted)
- 색상
- 흰색에서 거의 흰색
- InChIKey
- RIGFMUNSTCPGNP-UHFFFAOYSA-N
- CAS 데이터베이스
- 77359-11-6(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
HS 번호 | 2917399590 | ||
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기존화학 물질 | 2012-3-5564 |
그림문자(GHS): | |||||||||||||||
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신호 어: | Warning | ||||||||||||||
유해·위험 문구: |
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예방조치문구: |
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4-Nitrobenzyl hydrogen malonate C화학적 특성, 용도, 생산
용도
4-Nitrobenzyl hydrogen malonate is a reagent used in the synthesis of (±)-thienamycin, a β-Lactam antibiotics. Also, it is useful for chiral key intermediate of carbapenem syntheses.제조 방법
Preparation of mono-4-nitrobenzyl malonate:In a flame-dried 150 mL pressure tube under argon, add 5.00 g (34.7 mmol) of Meldrum's acid and 40 mL of anhydrous MeCN.
Add 5.58 g (36.4 mmol) of p-nitrobenzyl alcohol to the resulting solution.
Cap the tube tightly and reflux the reaction overnight.
Concentrate the reaction mixture under reduced pressure.
Purify the residue using column chromatography with a 55/45 hexane/EtOAc mixture.
The resulting product is mono-4-nitrobenzyl malonate with a yield of 87%.
4-Nitrobenzyl hydrogen malonate 준비 용품 및 원자재
원자재
준비 용품
4-Nitrobenzyl hydrogen malonate 공급 업체
글로벌( 280)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12456 | 58 |
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
Accela ChemBio Inc. | (+1)-858-699-3322 |
info@accelachem.com | United States | 19965 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8823 | 58 |
Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
Huaian yishu technology co.,ltd | 86-0517-85883738 13852390259 |
sales@yishuchem.com | CHINA | 53 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 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 |