Pyridine,4-methoxy-,1-oxide
4-Methoxypyridine-N-oxide
CAS: 1122-96-9
Molecular Formula: C6H7NO2
Pyridine,4-methoxy-,1-oxide - Names and Identifiers
| Name | 4-Methoxypyridine-N-oxide |
| Synonyms | AKOS 93569 4-Methoxypyridine-N-oxide 4-Methoxypyridine N-oxide p-methoxypyridine n-oxide 4-METHOXYPYRIDINE N-OXIDE 4-Methoxypyridine 1-oxide 4-methoxypyridine 1-oxide Pyridine,4-methoxy-,1-oxide 4-Methoxy-1-oxidopyridin-1-ium 4-METHOXYPYRIDINE 1-OXIDE HYDRATE |
| CAS | 1122-96-9 |
| EINECS | 214-367-1 |
| InChI | InChI=1/C6H7NO2.H2O/c1-9-6-2-4-7(8)5-3-6;/h2-5H,1H3;1H2 |
Pyridine,4-methoxy-,1-oxide - Physico-chemical Properties
| Molecular Formula | C6H7NO2 |
| Molar Mass | 125.13 |
| Density | 1.09±0.1 g/cm3(Predicted) |
| Melting Point | 73-79°C |
| Boling Point | 308.9±15.0 °C(Predicted) |
| Flash Point | 203.2°C |
| Vapor Presure | 1.55E-07mmHg at 25°C |
| Appearance | white to yellowish solid |
| Color | White to Yellow to Orange |
| Maximum wavelength(λmax) | ['282nm(CH3CN)(lit.)'] |
| BRN | 115212 |
| pKa | 2.30±0.10(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Sensitive | Hygroscopic |
| MDL | MFCD00006207 |
Pyridine,4-methoxy-,1-oxide - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S24/25 - Avoid contact with skin and eyes. S37 - Wear suitable gloves. |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 3-10 |
| HS Code | 29333990 |
Pyridine,4-methoxy-,1-oxide - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| application | N-oxides are generally obtained by the oxidation of corresponding tertiary amines. they are an important organic chemical intermediates and are widely used in organic synthesis (as oxidants, reaction intermediates, and structural units of a variety of important biologically active substances. |
| preparation | add 4mL of methanol, then add 4-methoxypyridine (0.5mmol,54.6mg), then add 30% H2O2(6.0eq.,0.3mL), potassium carbonate (4.0eq.,276.4mg) into a 25 ml round bottom two-mouth bottle, and use two straight piston straight bending joints at the same time, while connecting the balloon with a hose, SO2F2 gas is introduced, and the reaction is stirred at room temperature of 23~32 ℃ for 20~40min under sealing conditions. After the reaction, filter to remove the potassium carbonate solid, dry with anhydrous sodium sulfate to remove water and filter again, concentrate the solvent to obtain the crude product, and finally undergo column chromatography separation and purification to obtain 4-methoxypyridine nitrogen oxide 40.3mg, The yield is 65.4%. |
Last Update：2024-04-10 22:29:15
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View History
Pyridine,4-methoxy-,1-oxide
4H-Cyclopenta[b]thiophen-6(5H)
苯甲酸单乙醇胺
雷美替胺中间体
速溶姜油--姜茶原料
trimethyl-[phenethyl-bis(trimethylsilyloxy)silyl]oxy-silane
氯替泼诺
对二苯甲酸二肼
194615-04-8
天然天麻提取物
4H-Cyclopenta[b]thiophen-6(5H)
苯甲酸单乙醇胺
雷美替胺中间体
速溶姜油--姜茶原料
trimethyl-[phenethyl-bis(trimethylsilyloxy)silyl]oxy-silane
氯替泼诺
对二苯甲酸二肼
194615-04-8
天然天麻提取物