5-吡唑酮 - Names and Identifiers
5-吡唑酮 - Physico-chemical Properties
| Molecular Formula | C3H2N2O
|
| Molar Mass | 82.06078 |
5-吡唑酮 - Introduction
5-pyrrazolone(5-pyrrazolone) is an organic compound with the chemical formula C3H6N2O. The following is a description of its nature, use, formulation and safety information:
1. Properties: 5-pyrrazolone is a colorless crystalline solid, similar to the aroma of pyrazoline. It is soluble in most organic solvents, such as ethanol and chloroform, but poorly soluble in water.
2. Use: 5-pyrrazolone has a variety of uses. It is often used as an important intermediate in organic synthesis, such as synthetic dyes, photosensitive materials, fluorescent dyes and drugs. In addition, it is also used as a complexing agent for copper ions and can be used in chemical analysis and chemometrics.
3. Preparation method: 5-pyrrazolone can be prepared by various methods. One common method is by reaction with acetone and the corresponding nitrogen and carbonyl atom donors, such as the reaction of acetylacetone and hydrazine. In addition, there are other methods, such as oxidation of pyrazoline derivatives and carbonyl compounds, or by acylation of pyrazolines and acid catalysis.
4. Safety information: 5-pyrrazolone is less toxic to the human body, but it is still necessary to pay attention to safe operation. It will decompose at high temperatures and produce irritating or toxic gases, so care should be taken to avoid high temperatures when handling. At the same time, exposure to 5-pyrrazolone may cause allergic reactions, so you should wear appropriate personal protective equipment such as gloves and goggles when using it. During storage, keep away from fire and oxidizing agents, and keep the container sealed.
Last Update：2024-04-09 21:11:58