4,5,6,7-Tetrahydro-2H-indazole(CAS: 2305-79-5)

4,5,6,7-Tetrahydro-2H-indazole is a white or off-white crystalline solid. Its molecular weight is approximately 123.15 g/mol. It is slightly soluble in water but soluble in organic solvents like ethanol and acetone. The compound is stable under normal conditions but reacts with strong bases and oxidizing agents. It has a low boiling point and is not highly reactive under normal storage conditions.

4,5,6,7-Tetrahydro-2H-indazole can be synthesized by the condensation of anhydrous ammonia with indole or by the reduction of indazole. Common methods include the von Braun indazole synthesis using anhydrous ammonia and indole, or catalytic hydrogenation of indazole. These methods yield the compound with good selectivity and moderate to high yields depending on the reaction conditions.

4,5,6,7-Tetrahydro-2H-indazole is widely used in the pharmaceutical industry for the synthesis of medicinal compounds. It is also utilized in the polymer industry for the development of various materials. Additionally, it has applications in the production of sensors and in semiconductor technology for its electronic properties.

When handling 4,5,6,7-Tetrahydro-2H-indazole, it is crucial to use personal protective equipment (PPE) such as gloves, safety goggles, and lab coats. Store it in a cool, well-ventilated area and avoid contact with strong bases and oxidizing agents. In case of spill, use appropriate spill cleanup procedures and ensure proper disposal. Always consult the Material Safety Data Sheet (MSDS) for detailed safety information.