4-iso-Propoxyphenylboronic acid
4-Isopropoxylphenylboronic acid
CAS: 153624-46-5
Molecular Formula: C9H13BO3
4-iso-Propoxyphenylboronic acid - Names and Identifiers
4-iso-Propoxyphenylboronic acid - Physico-chemical Properties
| Molecular Formula | C9H13BO3 |
| Molar Mass | 180.01 |
| Density | 1.10±0.1 g/cm3(Predicted) |
| Melting Point | 150-154°C |
| Boling Point | 321.9±44.0 °C(Predicted) |
| Flash Point | 148.5°C |
| Solubility | DMSO (Slightly), Methanol (Slightly) |
| Vapor Presure | 0.00012mmHg at 25°C |
| Appearance | Solid |
| Color | White to off-white or light tan |
| pKa | 8.78±0.17(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | 1.511 |
| MDL | MFCD03427051 |
| Physical and Chemical Properties | WGK Germany:3 |
4-iso-Propoxyphenylboronic acid - 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. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| HS Code | 29319090 |
| Hazard Class | IRRITANT |
4-iso-Propoxyphenylboronic acid - Reference Information
| application | 4-isopropoxyphenylboronic acid can be used as an intermediate in organic synthesis and a pharmaceutical intermediate, mainly used in laboratory research and development processes and chemical and pharmaceutical production processes. |
| Preparation | The pentane solution of tert-butyl lithium (1.28 M,51.5 mL,66.0 mmol) was added dropwise to the 4-isopropoxybromobenzene (5.61g) solution in THF(150 mL) under argon atmosphere at -78°C. Stir the mixture for 1 hour. Trimethyl borate (5.02 mL, 45.0 mmol) was added to the mixture as a pure liquid. Stir the mixture at -78°C for 1 hour. Let the reaction mixture heat up to room temperature. Stir the reaction mixture for another 1 hour. Quenching the mixture with saturated NH4Cl aqueous solution. Evaporate the mixture under reduced pressure. Add 3 M HCl aqueous solution and adjust the pH of the residue to 3. The mixture was extracted with dichloromethane. Wash the extract with salt water. Dry the extract with Na2SO4. Evaporate extract under reduced pressure. Wash the residual solids with hexane. Filter the solid to obtain 4-isopropoxyphenylboronic acid. |
Last Update：2024-04-10 22:41:03
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