8-Chloro-2,4(1H,3H)-quinazolinedione(CAS: 62484-22-4)

8-Chloro-2,4(1H,3H)-quinazolinedione (CAS: 62484-22-4) is a crystalline solid with a molecular weight of approximately 243.01 g/mol. It is slightly soluble in water but soluble in organic solvents like ethanol and acetone. It shows moderate reactivity towards nucleophiles and can undergo substitution reactions. The compound has a melting point of around 220°C and is stable under normal laboratory conditions.

8-Chloro-2,4(1H,3H)-quinazolinedione is commonly synthesized via the condensation of 2-amino-4-chloroquinazoline with acetic anhydride. This reaction typically proceeds with good yield and selectivity, but appropriate solvents and temperature control are necessary to achieve optimal results. The use of a catalytic amount of sulfuric acid can enhance the reaction rate and yield.

8-Chloro-2,4(1H,3H)-quinazolinedione finds applications in the pharmaceutical industry for its potential as a drug precursor. It is also used in the polymer industry as a monomer for the synthesis of functional polymers. Additionally, it is utilized in chemical sensing, where it can act as a chromogenic reagent for certain chemical species, and in semiconductor technology for specific chemical treatments.

When handling 8-Chloro-2,4(1H,3H)-quinazolinedione, it is essential to use appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. This compound should be handled in a well-ventilated area, preferably in a fume hood, to minimize inhalation risks. Spills should be cleaned up using absorbent materials and the area should be thoroughly washed. The material safety data sheet (MSDS) should be consulted for detailed emergency response procedures and storage conditions.