Tetrahydro 4h Pyran 4 One - Cas No: 29943-42-8

Tetrahydropyran-4-one Application and Synthesis
Chemical Property:Density 1.084, boiling point 166-166.4 C, refractive index 1.451-1.453, flash point 56 C, and water-soluble MISCIBLE
Usage 1: Tetrahydropyranones are used in organic synthesis, due to their involvement in various cycloaddition reactions, as the cornerstone of more complex chemical structures
Usage 2:In organic synthesis, tetrahydropyranone participates in various cycloaddition reactions and is used as a structural block for many more complex chemical structures.
Usage 3: Used for pharmaceutical intermediates, organic synthesis
Usage 4:
Usage 5: Used as a solvent for nitrospray paint, rubber, Grignard reaction.
Production Method: The raw material 3-chloroprenoyl chloride and aluminum trichloride are added to the reactor, under stirring into the ethylene gas, the reactor temperature is controlled below 10a ; into water, hydrochloric acid, cooling to 0a , the reaction solution produced in the previous step into the water, stirring, stratification, 1.5, phosphate, sodium dihydrogen phosphate, 1.5-dichloropone, heating reflux, extraction, the crude product after the reaction, after decompression distillation is qualified product. The invention enables the product of high purity..
Toxicity Classification:
Acute Toxicity:
Flammability hazard characteristics: Its steam and air form an explosive mixture, in case of open fire, high heat or contact with oxidant, there is a risk of causing combustion and explosion. Its steam is heavier than air, can spread quite far at lower places, and can reignite in an open flame. In case of high heat, the pressure in the container increases, causing the risk of cracking and explosion. Potential explosive peroxides can be generated by exposure to air or under light conditions. It can react violently with acids.
Storage and transportation characteristics: Usually the commodities are supplemented with a stabilizer. Store in a cool, ventilated warehouse. Stay away from fire and heat sources. Prevent direct sunlight. The library temperature should not exceed 30a . Keep the container sealed. Should be stored separately with oxidants, acids, edible chemicals, avoid mixed storage. Explosion-proof-type lighting and ventilation facilities are adopted. Prothe use of mechanical equipment and tools prone to sparks. The storage area shall be equipped with leakage emergency treatment equipment and suitable shelter materials.
Fire extinguishing agent:Discolor or sound generated from the safety pressure relief device, must be evacuated immediately. Spray the liquid with water to dilute it into a noncombustible mixture and protect firefighters with foggy water. Fire extinguishing agent: anti-soluble foam, carbon dioxide, dry powder, sand soil.