METHYL 3-HYDROXY-2-NAPHTHOATE
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METHYL 3-HYDROXY-2-NAPHTHOATE 속성
- 녹는점
- 73-75 °C (lit.)
- 끓는 점
- 205-207 °C (lit.)
- 밀도
- 1.1868 (rough estimate)
- 굴절률
- 1.5440 (estimate)
- 인화점
- 205-207°C/160mm
- 저장 조건
- Inert atmosphere,Room Temperature
- 물리적 상태
- powder to crystal
- 산도 계수 (pKa)
- 9.36±0.40(Predicted)
- 색상
- Light yellow to Yellow to Orange
- BRN
- 1074526
- CAS 데이터베이스
- 883-99-8(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
METHYL 3-HYDROXY-2-NAPHTHOATE C화학적 특성, 용도, 생산
일반 설명
Methyl 3-hydroxy-2-naphthoate undergoes asymmetric oxidative coupling using mono-N-alkylated octahydrobinaphthyl-2,2′-diamine chiral ligands.Synthesis
Methyl 3-hydroxy-2-naphthoate is obtained by reacting 3-hydroxy-2-naphthoic acid with methanol in sulphuric acid.3-hydroxy-2-naphthoic acid (1.00 g, 5.31 mmol) was dissolved in methanol (20 ml) and concentrated sulphuric acid (1 ml) and left to reflux overnight with stirring. The reaction mixture was washed with brine (2×10 ml) and extracted with ethyl acetate (3 × 10 ml) upon cooling. The organic extracts were collected, dried with magnesium sulphate and concentrated in vacuo to give the title compound as a yellow powder (976 mg, 91%): mp: 81℃(Lit.: 75 – 76℃);vmax/cm-1 3178 br. m (O-H), 2952 w (aro. C-H), 1515 m (aro. C=C); δH (300 MHz; CDCl3) 10.47 (1H, s, OH), 8.47 (1H, s, C(1)H), 7.79 (1H, d, J 8.3, C(5)H or C(8)H), 7.68 (1H, d, J 8.3, C(5)H or C(8)H), 7.50 (1H, td, J 7.5, 1.1, C(6)H or C(7)H), 7.36-7.29 (2H, m, C(4)H and C(6)H or C(7)H), 4.02 (3H, s, OCH3); δC (75 MHz; CDCl3) 170.3 (Ar- C), 156.3 (Ar-C), 137.9 (Ar-C), 132.5 (Ar-CH), 129.2 (Ar-CH), 129.1 (Ar-CH), 127.1 (Ar-C), 126.3 (Ar-CH), 124.0 (Ar-CH), 114.2 (Ar-C), 111.7 (Ar-CH), 52.6 (OCH3); m/z (-ES) 201 (100%, [M-H]-), 202 (14%, [M]-).
Purification Methods
Crystallise the ester from MeOH (charcoal) containing a little water. [Beilstein 10 IV 1186.]METHYL 3-HYDROXY-2-NAPHTHOATE 준비 용품 및 원자재
원자재
준비 용품
METHYL 3-HYDROXY-2-NAPHTHOATE 공급 업체
글로벌( 115)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
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 |
Changzhou Ditong Chemical Co.,Ltd | +86-0519-88299272 |
info@edengenechem.com | China | 2169 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 |
sales@chemdad.com | China | 39916 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 47465 | 58 |
Jinan Liheng Biotechnology Co., Ltd. | 15865262812 |
info@lihengpharm.com | CHINA | 938 | 58 |
Richest Group Ltd | 18017061086 |
oled@richest-group.com | CHINA | 5601 | 58 |
Hebei Yanxi Chemical Co., Ltd. | +8617531190177 |
peter@yan-xi.com | China | 5993 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 |
sales@tnjchem.com | China | 34572 | 58 |
ANHUI WITOP BIOTECH CO., LTD | +8615255079626 |
eric@witopchemical.com | China | 23556 | 58 |
METHYL 3-HYDROXY-2-NAPHTHOATE 관련 검색:
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