1,5-dimethyl pent-2-enedioate(CAS: 5164-76-1)

1,5-Dimethyl pent-2-enedioate (CAS: 5164-76-1) is a colorless to light yellow liquid with a molecular weight of approximately 148.15 g/mol. It has a melting point of -21°C and a boiling point of 123-124°C. The compound is slightly soluble in water but miscible with most organic solvents. It is reactive, particularly towards nucleophiles and reducing agents.

1,5-Dimethyl pent-2-enedioate is typically synthesized via the esterification of maleic anhydride with dimethyl malonate. This reaction is usually catalyzed by an acid, such as sulfuric acid, at elevated temperatures. The yield is around 80-90%, and the selectivity towards the desired diester product is high.

1,5-Dimethyl pent-2-enedioate (CAS: 5164-76-1) is used in various industries, including pharmaceuticals for the synthesis of certain drugs, polymers as a monomer, sensors as a sensitive compound, and semiconductors for specific doping applications. Its versatile chemical properties make it suitable for these diverse applications.

When handling 1,5-dimethyl pent-2-enedioate (CAS: 5164-76-1), it is essential to wear appropriate personal protective equipment (PPE), such as gloves, goggles, and a lab coat. Fume hoods should be used to minimize inhalation risk. Spills should be cleaned up using appropriate absorbent materials, and the material safety data sheet (MSDS) should be consulted for detailed spill cleanup procedures. Storage should be in a cool, dry place, away from direct sunlight and incompatible materials.