2,5-Dimethoxyphenylboronic acid - Names and Identifiers
2,5-Dimethoxyphenylboronic acid - Physico-chemical Properties
Molecular Formula | C8H11BO4
|
Molar Mass | 181.98 |
Density | 1.19±0.1 g/cm3(Predicted) |
Melting Point | 95-98 °C (lit.) |
Boling Point | 374.5±52.0 °C(Predicted) |
Flash Point | 180.3°C |
Vapor Presure | 2.84E-06mmHg at 25°C |
Appearance | White crystalline powder |
BRN | 2969872 |
pKa | 8.12±0.58(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Refractive Index | 1.517 |
MDL | MFCD01318181 |
2,5-Dimethoxyphenylboronic acid - Risk and Safety
Hazard Symbols | Xi - Irritant
|
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin.
|
Safety Description | S37/39 - Wear suitable gloves and eye/face protection
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37 - Wear suitable protective clothing and gloves.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
|
WGK Germany | 3 |
HS Code | 29319090 |
Hazard Note | Irritant/Keep Cold |
Hazard Class | IRRITANT |
2,5-Dimethoxyphenylboronic acid - Introduction
2,5-dimethoxybenzene boronic acid, chemical formula C9H11BO4, is an organic boron compound. The following is an introduction to its nature, use, formulation and safety information:
Nature:
-Appearance: 2,5-dimethoxybenzene boronic acid is a white crystalline solid.
-Melting point: Its melting point is about 106-108 degrees Celsius.
-Solubility: It is slightly soluble in water and insoluble in organic solvents such as alcohols and ethers.
Use:
-Catalyst: 2,5-dimethoxybenzene boronic acid is often used as the ligand of asymmetric catalyst, participates in organic synthesis reaction, and can effectively catalyze asymmetric addition reaction and asymmetric hydrogenation reaction.
-Organic synthesis: It can be used to prepare drugs and other organic molecules, such as sugars, hormones, natural products, etc.
Preparation Method:
2,5-Dimethoxybenzene boronic acid is usually synthesized by the following steps:
1. Methylation along two positions on the aromatic ring can obtain 2,5-dimethoxybenzaldehyde.
2. react 2,5-dimethoxybenzaldehyde with triphenylboron to generate 2,5-dimethoxybenzeneboronic acid.
Safety Information:
2,5-dimethoxybenzene boric acid is relatively safe under normal conditions of use, but the following matters still need to be paid attention:
-Avoid contact with skin and eyes, and rinse with plenty of water in time after contact.
-Wear appropriate eye protection and gloves during operation.
-Avoid inhaling its dust or gas, and operate in a well-ventilated place.
-Store away from ignition and oxidizing agents.
When using and handling 2,5-dimethoxyphenylboronic acid, it should be operated in accordance with the standard procedures for safe laboratory operations and chemical handling to ensure personal safety and the safety of the experimental environment.
Last Update:2024-04-09 19:05:44