3-Hydroxy-2-naphthamide(CAS: 3665-51-8)

3-Hydroxy-2-naphthamide (CAS: 3665-51-8) is a crystalline compound with a molecular weight of approximately 186.18 g/mol. It has a pKa around 9.8, indicating basic properties. The compound is poorly soluble in water but soluble in organic solvents like ethanol and acetone. It is not highly reactive but can undergo substitution reactions under certain conditions. It has a melting point of about 220-222°C.

3-Hydroxy-2-naphthamide can be synthesized via a multi-step process involving the condensation of 2-naphthylamine with acetic anhydride followed by hydrolysis. The reaction is carried out under mild conditions with good yield. Common catalysts used include phosphoric acid, and the process is typically performed in organic solvents to enhance reactivity.

3-Hydroxy-2-naphthamide (CAS: 3665-51-8) is used in various industries, particularly in the pharmaceutical sector for the synthesis of drugs, and in the polymer industry for the production of special plastics. It also finds applications in the development of sensors and semiconductors due to its unique chemical properties.

When handling 3-Hydroxy-2-naphthamide (CAS: 3665-51-8), appropriate personal protective equipment (PPE) should be worn, including gloves, goggles, and a lab coat. Work should be conducted in a well-ventilated area or a fume hood. In case of a spill, immediate cleanup should be performed using appropriate absorbent materials, and the area should be rinsed with water. Always refer to the Safety Data Sheet (SDS) for detailed safety information.