Chloro(ethynyl)magnesium(CAS: 65032-27-1)

Chloro(ethynyl)magnesium is a colorless, crystalline solid with a molecular weight of approximately 94.07 g/mol. It has a low solubility in water but is highly soluble in ether and other organic solvents. This compound is known for its strong reactivity, particularly in forming alkynes and acetylenes. It is typically stored in an inert atmosphere due to its tendency to react with moisture and oxygen.

Chloro(ethynyl)magnesium is typically synthesized by reacting magnesium with ethyne (acetylene) in the presence of a solvent such as tetrahydrofuran (THF). The reaction is catalyzed by the presence of magnesium. The yield is relatively high, and the selectivity is good, forming the desired chloro(ethynyl)magnesium compound with high purity.

Chloro(ethynyl)magnesium is widely used in the pharmaceutical industry for the synthesis of complex organic compounds, particularly in the production of drugs. It is also utilized in the polymer industry for the preparation of certain types of polymers, and in the semiconductor industry for the production of specific materials used in electronic devices.

When handling Chloro(ethynyl)magnesium, safety precautions include the use of personal protective equipment (PPE) such as gloves, goggles, and a lab coat. The compound should be stored in a tightly sealed container in a cool, dry place, away from moisture and oxidizing agents. Spills should be handled with appropriate absorbents and disposed of according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed safety information.