boronic acid, B-(4-chloro-3-pyridinyl)- - Names and Identifiers
boronic acid, B-(4-chloro-3-pyridinyl)- - Physico-chemical Properties
Molecular Formula | C5H5BClNO2
|
Molar Mass | 157.36 |
Density | 1.415g/cm3 |
Boling Point | 333.983°C at 760 mmHg |
Flash Point | 155.788°C |
Vapor Presure | 0mmHg at 25°C |
Storage Condition | Inert atmosphere,Store in freezer, under -20°C |
Refractive Index | 1.559 |
boronic acid, B-(4-chloro-3-pyridinyl)- - Risk and Safety
boronic acid, B-(4-chloro-3-pyridinyl)- - Introduction
4-Chloropyridine-3-boronic acid is an organic compound with the chemical formula C5H5BClNO2. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: 4-Chloropyridine-3-boronic acid is a white to pale yellow solid.
-Solubility: It can be dissolved in polar solvents such as water, alcohol and ketone.
-Stability: relatively stable at room temperature, but not heat resistant.
-Melting point: about 185-190°C.
-Density: about 1.42g/cm³.
- 4-Chloropyridine-3-boronic acid is an important organic boron compound.
Use:
- 4-Chloropyridine-3-boronic acid is often used as an important raw material for organic synthesis.
-It can be used to synthesize various organic compounds, such as pharmaceutical intermediates, pesticides, dyes and photoelectric materials.
- 4-Chloropyridine-3-boronic acid is also commonly used as a ligand in organometallic-catalyzed reactions.
Preparation Method:
-Generally, 4-Chloropyridine-3-boronic acid can be synthesized by the following steps:
1. 4-chloropyridine reacts with boric acid in an organic solvent to generate the corresponding boric acid ester.
2. Hydrolysis of boric acid ester under acidic conditions to generate 4-Chloropyridine-3-boronic acid.
Safety Information:
- 4-Chloropyridine-3-boronic acid is irritating.
-Appropriate safety precautions should be taken during operation, such as wearing gloves, protective glasses and laboratory coats.
-Unusual exposure or inhalation may cause respiratory tract irritation and eye and skin irritation.
-If an accident occurs, please seek medical assistance and bring the safety data sheet of the compound.
Last Update:2024-04-09 02:00:46