Phenyllithium(CAS: 591-51-5)

Phenyllithium (CAS: 591-51-5) is a white crystalline solid at room temperature with a molecular weight of 101.15 g/mol. It is highly reactive and soluble in ether and alcohols. Phenyllithium is known for its strong basicity and nucleophilicity, making it an excellent reagent in nucleophilic substitution and addition reactions.

Phenyllithium (CAS: 591-51-5) is typically synthesized by the reaction of phenylmagnesium bromide with lithium metal in a dry ether solvent. The reaction is highly exothermic and requires careful control to ensure a high yield and selectivity. Common procedures involve the use of a drying agent like magnesium sulfate to remove trace water, which could otherwise react with the phenyllithium to form phenoxide.

Phenyllithium (CAS: 591-51-5) is widely used in the pharmaceutical industry for the synthesis of complex organic molecules and intermediates. It is also used in polymer synthesis to introduce functional groups, in the production of sensors, and in semiconductor fabrication processes for specific chemical reactions.

Handling Phenyllithium (CAS: 591-51-5) requires strict safety protocols. It is highly reactive and can spontaneously ignite in air. Proper personal protective equipment (PPE) such as gloves, goggles, and a lab coat is essential. Work should be conducted in a fume hood. In case of a spill, it should be carefully contained and disposed of according to safety data sheet (SDS) guidelines.