4,5-Dichloro-2-(methylsulfanyl)pyrimidine(CAS: 99469-85-9)

4,5-Dichloro-2-(methylsulfanyl)pyrimidine is a crystalline solid with a molecular weight of approximately 215.01 g/mol. It is slightly soluble in water but soluble in common organic solvents like ethanol and acetone. The compound exhibits high reactivity, particularly towards nucleophilic substitution reactions. It has a melting point around 145-147°C and is generally stable under normal conditions but should be handled with care due to its reactivity.

4,5-Dichloro-2-(methylsulfanyl)pyrimidine is typically synthesized through a nucleophilic substitution reaction involving chlorination of 2-(methylsulfanyl)pyrimidine. Commonly, this is achieved by reacting the amine with chlorine gas in the presence of a catalyst such as iron(III) chloride. The reaction is exothermic and requires careful monitoring to ensure a high yield and selectivity.

4,5-Dichloro-2-(methylsulfanyl)pyrimidine finds applications in various industries. It is primarily used in the pharmaceutical sector for the synthesis of drug intermediates. Additionally, it is utilized in the polymer industry for the preparation of advanced polymers and in the semiconductor industry for the fabrication of electronic materials. Its reactivity makes it suitable for use in sensor technologies as well.

When handling 4,5-Dichloro-2-(methylsulfanyl)pyrimidine, it is essential to wear appropriate personal protective equipment (PPE) including gloves, goggles, and a lab coat. The compound should be handled in a well-ventilated area or a fume hood to minimize the risk of inhalation. Spills should be cleaned up using appropriate absorbents, and the area should be thoroughly washed and ventilated. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal information.