2,7-Dimethyl-1,4-naphthoquinone(CAS: 482-70-2)

2,7-Dimethyl-1,4-naphthoquinone is a crystalline solid with a molecular weight of approximately 198.23 g/mol. It has a melting point of 175-176°C and is slightly soluble in water but miscible with organic solvents like ethanol and methanol. Chemically, it is a relatively stable compound, with limited reactivity under normal conditions.

2,7-Dimethyl-1,4-naphthoquinone is typically synthesized via a Wittig reaction between naphthalene and dimethyl carbonate in the presence of a strong base like sodium hydride. The reaction is carried out in anhydrous ether or dimethylformamide (DMF) at room temperature, yielding a high selectivity and good yield.

2,7-Dimethyl-1,4-naphthoquinone is used in various industries, including pharmaceuticals for its antioxidant properties, polymer manufacturing for stabilizers, and semiconductor production for dopants. It also finds applications in the development of sensors and as a precursor in organic synthesis.

When handling 2,7-Dimethyl-1,4-naphthoquinone, always wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work in a well-ventilated area or a fume hood to minimize inhalation risks. Store it in a cool, dry place away from direct sunlight. In case of spills, use appropriate spill kits, and consult the Safety Data Sheet (SDS) for detailed instructions.