午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

ChemicalBook--->CAS DataBase List--->2150-42-7

2150-42-7

2150-42-7 Structure

2150-42-7 Structure
IdentificationBack Directory
[Name]

METHYL 2,3-DIMETHOXY BENZOATE
[CAS]

2150-42-7
[Synonyms]

Methyl o-veratrate
RARECHEM AL BF 0023
o-Veratric acid methyl ester
METHYL 2,3-DIMETHOXY BENZOATE
Methyl 2,3-dimethoxybenzoate 97%
2,3-Dimethoxybenzoic acid methyl ester
Benzoic acid, 2,3-dimethoxy-, methyl ester
[EINECS(EC#)]

218-425-7
[Molecular Formula]

C10H12O4
[MDL Number]

MFCD00027555
[MOL File]

2150-42-7.mol
[Molecular Weight]

196.2
Chemical PropertiesBack Directory
[Melting point ]

48-52 °C(lit.)
[Boiling point ]

180-185 °C50 mm Hg(lit.)
[density ]

1.119±0.06 g/cm3(Predicted)
[Fp ]

110 °C
[storage temp. ]

Sealed in dry,Room Temperature
[form ]

solid
[LogP]

1.830 (est)
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

22-36/37/38
[Safety Statements ]

26-36
[WGK Germany ]

3
[HS Code ]

2918999090
Spectrum DetailBack Directory
[Spectrum Detail]

METHYL 2,3-DIMETHOXY BENZOATE(2150-42-7)1HNMR
Hazard InformationBack Directory
[Synthesis]

Methanol

67-56-1

1,2-Dimethoxybenzene

91-16-7

N,N-Dimethylformamide

68-12-2

METHYL 2,3-DIMETHOXY BENZOATE

2150-42-7

At -78 °C, n-butyllithium (1.67 M hexane solution, 1.3 mL, 2.2 mmol) was slowly added dropwise to a tetrahydrofuran (3 mL) solution of p-bromoanisole (383 mg, 2.0 mmol) and the dropwise process lasted for 30 min. Subsequently, N,N-dimethylformamide (0.22 mL, 2.2 mmol) was added to the reaction mixture and the mixture was warmed up to room temperature with stirring. After 2 hours of reaction, the tetrahydrofuran was removed under reduced pressure. Methanol (3 mL) was added to the residue and stirring was continued for 30 minutes at room temperature. Subsequently, the reaction mixture was cooled to 0 °C, iodine (1523 mg, 6 mmol) and potassium carbonate (829 mg, 6 mmol) were added sequentially, and then the mixture was warmed to room temperature and stirred for 22 hours. After completion of the reaction, the reaction was quenched with saturated aqueous sodium sulfite (5 mL) and extracted with chloroform (3 x 20 mL). The organic layers were combined, washed with brine, dried over anhydrous sodium sulfate and concentrated to give methyl 4-methoxybenzoate in 82% yield. If necessary, the product can be purified by short column chromatography (silica gel: hexane/ethyl acetate = 9:1) to obtain pure methyl 4-methoxybenzoate as a colorless oil.

[References]

[1] Tetrahedron, 2012, vol. 68, # 24, p. 4701 - 4709
2150-42-7 suppliers list
Company Name: Alchem Pharmtech,Inc.
Tel: 8485655694
Website: www.yuhua99.com/ShowSupplierProductsList454175/0_EN.htm
Company Name: ANHUI WITOP BIOTECH CO., LTD
Tel: +8615255079626 , +8615255079626
Website: www.yuhua99.com/ShowSupplierProductsList418627/0_EN.htm
Company Name: Aromsyn Co., Ltd.
Tel: +86-0571-85585865 +8613336024896 , +8613336024896
Website: https://www.aromsyn.com/
Company Name: Aladdin Scientific
Tel:
Website: www.aladdinsci.com/
Company Name: Shandong Liteng Biotechnology Co. , Ltd.
Tel: +86-18663721413 +86-15552573001 , +86-15552573001
Website: https://www.litengpharm.com/
Company Name: Hebei Chuanghai Biotechnology Co., Ltd
Tel: +86-15350571055
Website: www.chuanghai.com/
Company Name: Amadis Chemical Company Limited
Tel: 571-89925085
Website: http://www.amadischem.com
Company Name: Shanghai Sinch Parmaceuticals Tech. Co. Ltd.
Tel: +86-21-54098501
Website: www.sinch.com.cn
Company Name: J & K SCIENTIFIC LTD.  
Tel: 18210857532; 18210857532
Website: https://www.jkchemical.com
Company Name: Energy Chemical  
Tel: 021-021-58432009 400-005-6266
Website: http://www.energy-chemical.com
Company Name: Wuhan Chemwish Technology Co., Ltd  
Tel: 86-027-67849912
Website: www.chemwish.com
Company Name: Shanghai Hanhong Scientific Co.,Ltd.  
Tel: 021-54306202 13764082696
Website: https://www.hanhongsci.com
Company Name: Sigma-Aldrich  
Tel: 021-61415566 800-8193336
Website: https://www.sigmaaldrich.cn
Company Name: Chengdu Research Accelerators Technology Co., Ltd.  
Tel: 028-64353063
Website: www.yuhua99.com/ShowSupplierProductsList17155/0_EN.htm
Company Name: Zhengzhou Alfachem Co., Ltd.  
Tel: 0371-53765687 18937137882
Website: http://www.yuhua99.com/supplier/10084342/
Company Name: Shanghai YuanYe Biotechnology Co., Ltd.  
Tel: 021-61312847; 18021002903
Website: http://www.shyuanye.com
Company Name: Nanjing Nohon Biological Technology Co., Ltd.  
Tel: 025-85767923 18512596075
Website: http://www.nuoxibio.com
Company Name: Dalian lichuang Chemical Co., Ltd  
Tel: 0411-0411-00000000 13644282108
Website: www.yuhua99.com/ShowSupplierProductsList20133/0_EN.htm
Tags:2150-42-7 Related Product Information
88-99-3 118-08-1

  • HomePage | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase | Privacy | Terms | About Us
  • All products displayed on this website are only for non-medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.
    According to relevant laws and regulations and the regulations of this website, units or individuals who purchase hazardous materials should obtain valid qualifications and qualification conditions.
  • Copyright © 2023 ChemicalBook All rights reserved.