3-Bromo-5-methyl-2H-pyrazole - Names and Identifiers
3-Bromo-5-methyl-2H-pyrazole - Physico-chemical Properties
Molecular Formula | C4H5BrN2
|
Molar Mass | 161 |
Density | 1.723 |
Melting Point | 138-139 °C |
Boling Point | 270℃ |
Flash Point | 117℃ |
pKa | 11.44±0.10(Predicted) |
Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
Use | Uses 3-bromo-5-methylpyrazole is used to prepare cyclobutanediol. |
3-Bromo-5-methyl-2H-pyrazole - Upstream Downstream Industry
3-Bromo-5-methyl-2H-pyrazole - Introduction
It is an organic compound with the chemical formula C4H5BrN2. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: Colorless to pale yellow crystals.
-Solubility: It has weak solubility in water and is soluble in organic solvents such as alcohols and ethers.
-Melting point: Its melting point is in the range of 125-128 degrees Celsius.
-Stability: It is a relatively stable compound, but it will gradually decompose under light.
Use:
-Chemical reagent: It is widely used as a chemical reagent in organic synthesis, especially in Amination Reactions and cyclization reactions.
-Drug intermediates: It is also used in the preparation of some intermediates in the drug synthesis process.
Method:
The preparation method can be carried out by the following steps:
1. Take methyl pyrazole as the starting material.
2. Under the reaction conditions, the bromine atom is introduced into the methyl pyrazole molecule to replace the methyl group to obtain the target product.
Safety Information:
-should be considered hazardous and care should be taken to follow appropriate safety practices.
-Pay attention to avoid direct contact with skin and eyes when using.
-Wear appropriate personal protective equipment such as gloves and goggles during operation.
-If spilled or inhaled, Please quickly away from the scene, and promptly wash the affected area or seek medical help.
Last Update:2024-04-09 15:18:03