Pyrazole, dihydro-
pyrazoline
CAS: 36118-45-3
Molecular Formula: C3H6N2
Pyrazole, dihydro- - Names and Identifiers
| Name | pyrazoline |
| Synonyms | pyrazoline Dihydropyrazole Einecs 252-878-1 Pyrazole, dihydro- |
| CAS | 36118-45-3 |
| EINECS | 252-878-1 |
Pyrazole, dihydro- - Physico-chemical Properties
| Molecular Formula | C3H6N2 |
| Molar Mass | 70.09 |
| Boling Point | 142-143 °C(Press: 20 Torr) |
Pyrazole, dihydro- - Introduction
pyrazoline is an organic compound with the chemical formula C3H5N2. It has the following properties:
1. Appearance: pyrazoline is a colorless to light yellow liquid with a special ammonia odor.
2. Solubility: pyrazoline is miscible with many organic solvents and water, but insoluble in non-polar solvents.
3. Stability: pyrazoline is relatively stable to air and light, but it may decompose under the action of high temperature and strong oxidant.
pyrazoline main uses are as follows:
1. Chemical Synthesis: pyrazoline can be used as catalyst, solvent and ligand in organic synthesis.
2. Drug synthesis: pyrazoline is an important drug intermediate, which is widely used in the manufacture of antibiotics, anticancer drugs, antiviral drugs, etc.
3. Metal corrosion inhibitor: pyrazoline can be used as a metal corrosion inhibitor to protect metal surfaces from corrosion.
The preparation methods of pyrazoline mainly include the following:
1. Reduction of pyrazole and hydrogen: The catalytic reduction reaction of pyrazole and hydrogen generates pyrazoline under heating and pressure.
2. Hydrogenation reaction of aldehyde or ketone: aldehyde or ketone is reacted with ammonia and hydrogen, and pyrazoline is generated by hydrogenation reduction.
Safety precautions when using pyrazoline:
1. Avoid contact with skin and eyes: pyrazoline is irritating and may cause irritation or burns when in contact with skin and eyes.
2. Avoid inhalation and ingestion: Keep away from inhaling pyrazoline vapor or swallowing it, as it may cause irritation and damage to the respiratory and digestive systems.
3. Storage and handling: pyrazoline should be stored in a sealed container, avoid contact with oxidants and strong acids, avoid high temperature and sun exposure.
Please read carefully before using pyrazoline and follow the relevant safety guidelines and operating methods.
1. Appearance: pyrazoline is a colorless to light yellow liquid with a special ammonia odor.
2. Solubility: pyrazoline is miscible with many organic solvents and water, but insoluble in non-polar solvents.
3. Stability: pyrazoline is relatively stable to air and light, but it may decompose under the action of high temperature and strong oxidant.
pyrazoline main uses are as follows:
1. Chemical Synthesis: pyrazoline can be used as catalyst, solvent and ligand in organic synthesis.
2. Drug synthesis: pyrazoline is an important drug intermediate, which is widely used in the manufacture of antibiotics, anticancer drugs, antiviral drugs, etc.
3. Metal corrosion inhibitor: pyrazoline can be used as a metal corrosion inhibitor to protect metal surfaces from corrosion.
The preparation methods of pyrazoline mainly include the following:
1. Reduction of pyrazole and hydrogen: The catalytic reduction reaction of pyrazole and hydrogen generates pyrazoline under heating and pressure.
2. Hydrogenation reaction of aldehyde or ketone: aldehyde or ketone is reacted with ammonia and hydrogen, and pyrazoline is generated by hydrogenation reduction.
Safety precautions when using pyrazoline:
1. Avoid contact with skin and eyes: pyrazoline is irritating and may cause irritation or burns when in contact with skin and eyes.
2. Avoid inhalation and ingestion: Keep away from inhaling pyrazoline vapor or swallowing it, as it may cause irritation and damage to the respiratory and digestive systems.
3. Storage and handling: pyrazoline should be stored in a sealed container, avoid contact with oxidants and strong acids, avoid high temperature and sun exposure.
Please read carefully before using pyrazoline and follow the relevant safety guidelines and operating methods.
Last Update：2024-04-09 21:21:28
