3-QUINOLINECARBOXYLIC ACID, 1-CYCLOPROPYL-6,7-DIFLUORO-1,4-DIHYDRO-8-METHOXY-4-OXO-
1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
CAS: 112811-72-0
Molecular Formula: C14H11F2NO4
3-QUINOLINECARBOXYLIC ACID, 1-CYCLOPROPYL-6,7-DIFLUORO-1,4-DIHYDRO-8-METHOXY-4-OXO- - Names and Identifiers
3-QUINOLINECARBOXYLIC ACID, 1-CYCLOPROPYL-6,7-DIFLUORO-1,4-DIHYDRO-8-METHOXY-4-OXO- - Physico-chemical Properties
| Molecular Formula | C14H11F2NO4 |
| Molar Mass | 295.24 |
| Density | 1.581±0.06 g/cm3(Predicted) |
| Melting Point | 192-194°C |
| Boling Point | 474.4±45.0 °C(Predicted) |
| Flash Point | 240.7°C |
| Solubility | Chloroform (Slightly), Methanol (Slightly, Sonicated) |
| Vapor Presure | 8.35E-10mmHg at 25°C |
| Appearance | off-white to yellowish powder |
| Color | White to Pale Beige |
| pKa | 6.36±0.50(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.629 |
| MDL | MFCD05864420 |
3-QUINOLINECARBOXYLIC ACID, 1-CYCLOPROPYL-6,7-DIFLUORO-1,4-DIHYDRO-8-METHOXY-4-OXO- - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | 22 - Harmful if swallowed |
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| HS Code | 29334900 |
| Hazard Class | IRRITANT |
3-QUINOLINECARBOXYLIC ACID, 1-CYCLOPROPYL-6,7-DIFLUORO-1,4-DIHYDRO-8-METHOXY-4-OXO- - Reference Information
| Introduction | 1-cyclopropyl-6, 7-difluoro-1, 4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid is grayish white to light yellow powder under normal temperature and pressure. 1-cyclopropyl-6, 7-difluoro-1, 4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid in dichloromethane and chloroform Solvation is not very good, it can be used as an intermediate in medicinal chemistry and organic synthesis. |
| Synthesis method | For the synthesis of 1-cyclopropyl-6, 7-difluoro-1, 4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid, according to investigation, the most synthetic route is to start from the corresponding ester and carry out the corresponding ester hydrolysis reaction to obtain the product. The reason for using this method may be that the previous step in the synthesis of this skeleton is to use dimethyl sulfate to protect the phenolic hydroxyl and carboxyl groups at the same time, and the product obtained is an esterification product. However, under the reaction conditions of subsequent hydrolysis of ester groups, methoxy groups will not be deprotected. As for the method of demethylation, the commonly used method is sulfuric acid plus reflux, or the condition of boron trifluoride plus tetrahydrofuran. |
Last Update：2024-04-09 21:21:28
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View History
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