1,2-Hexadien-5-yne - Names and Identifiers
1,2-Hexadien-5-yne - Physico-chemical Properties
| Molecular Formula | C6H6
|
| Molar Mass | 78.11 |
| Density | 0.743±0.06 g/cm3(Predicted) |
| Boling Point | 89-90 °C |
1,2-Hexadien-5-yne - Upstream Downstream Industry
1,2-Hexadien-5-yne - Introduction
1,2-hexadiene-5-yne (1,2-hexadien-5-yne) is an organic compound with the chemical formula C6H8. The following is a description of its nature, use, preparation and safety information:
Nature:
1,2-hexadiene-5-yne is a colorless liquid with a special smell. Its density is small, insoluble in water, soluble in organic solvents such as ethanol, ether and benzene. It can be slowly oxidized in the air and will decompose when heated.
Use:
1,2-hexadiene-5-yne can be used as starting materials and intermediates in organic synthesis. It has low electrophilicity and can be used as a substrate for the reaction of alkynylation, nucleophilic addition reaction and cyclization reaction. It is widely used in synthetic chemistry for the preparation of alkynyl-containing compounds such as polymers, natural products, and pharmaceuticals.
Method:
1,2-hexadiene-5-yne can be synthesized by different methods, and the commonly used methods are as follows:
1. By reacting hexadiene with bromine under alkaline conditions, followed by neutralization with sodium carbonate to produce 1,2-hexadiene-5-yne.
2. By reacting hexadiene with a haloacetylene compound, 1,2-hexadiene-5-ylhaloalkane is formed, which is treated with alkali to give 1,2-hexadiene-5-yne.
Safety Information:
1,2-hexadiene-5-yne is a flammable liquid, and exposure to open flames, high temperatures or oxidants may cause a fire. Necessary safety measures should be taken during operation and storage, such as avoiding contact with fire sources and providing appropriate ventilation facilities. At the same time, it is also necessary to avoid contact with strong oxidants, strong acids and strong bases, and to avoid inhalation of their vapors or skin contact. Wear appropriate protective equipment such as chemical goggles, protective gloves and protective clothing during use. In case of accidental contact or inhalation, seek medical help immediately.
Last Update：2024-04-09 21:11:58