4-Chloro-5-fluoro-1H-indole-2,3-dione(CAS: 84378-94-9)

4-Chloro-5-fluoro-1H-indole-2,3-dione (CAS: 84378-94-9) is a crystalline solid with a molecular weight of approximately 245.02 g/mol. It has a melting point of 160-162°C and is slightly soluble in water. It is chemically reactive, particularly towards nucleophiles and bases. It is susceptible to hydrolysis under basic conditions and will undergo electrophilic substitution reactions.

4-Chloro-5-fluoro-1H-indole-2,3-dione (CAS: 84378-94-9) is typically synthesized via a multi-step process involving indole ring formation and subsequent chlorination and fluorination. Commonly, indole is protected at the C3 position, followed by chlorination and subsequent fluorination steps. The process involves the use of Lewis acids and halogenating agents, with yields ranging from 50% to 70%.

4-Chloro-5-fluoro-1H-indole-2,3-dione (CAS: 84378-94-9) is used in the pharmaceutical industry for the synthesis of certain drugs due to its functional groups. It is also employed in the sensor technology and semiconductor manufacturing sectors, where its reactive properties are utilized for specific applications in these industries.

When handling 4-Chloro-5-fluoro-1H-indole-2,3-dione (CAS: 84378-94-9), it is essential to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Handle under a fume hood to minimize inhalation risks. Spills should be cleaned up according to safety data sheet (SDS) recommendations. Proper storage in secure, well-ventilated areas is crucial to prevent reactions and ensure safety.