Diethyl (2-thienylmethylene)malonate(CAS: 30313-06-5)

Diethyl (2-thienylmethylene)malonate is a white crystalline solid with a molecular weight of approximately 238.27 g/mol. It has a low solubility in water but is soluble in organic solvents like ethanol and acetone. Chemically, it is reactive towards nucleophiles and can undergo esterification and condensation reactions.

Diethyl (2-thienylmethylene)malonate is typically synthesized via a condensation reaction between 2-thiophenecarboxaldehyde and ethyl malonate in the presence of an acid catalyst such as sulfuric acid. The reaction is carried out at elevated temperatures, and the yield is generally high, with selectivity towards the desired product.

Diethyl (2-thienylmethylene)malonate finds applications in the pharmaceutical industry for the synthesis of intermediates, in the polymer industry as a monomer or additive, and in the sensor and semiconductor industries for the development of functional materials and devices.

When handling Diethyl (2-thienylmethylene)malonate, it is important to use appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. The substance should be stored in a cool, dry place away from any ignition sources. In case of spill, ensure proper ventilation and use appropriate spill cleanup materials. Always refer to the Safety Data Sheet (SDS) for detailed safety information.