5-Hydroxy-7-(4-hydroxyphenyl)-2,2-dimethyl-3,4-dihydro-2H,6H-pyrano[3,2-g]chromen-6-one(CAS: 63807-90-9)

5-Hydroxy-7-(4-hydroxyphenyl)-2,2-dimethyl-3,4-dihydro-2H,6H-pyrano[3,2-g]chromen-6-one (CAS: 63807-90-9) is a crystalline solid with a molecular weight of approximately 322.24 g/mol. It has a solubility of about 1 mg/mL in water and is poorly soluble in organic solvents. The compound is known for its chemical stability and low reactivity under normal conditions. It exhibits moderate polarity and is susceptible to hydrolysis under basic conditions.

5-Hydroxy-7-(4-hydroxyphenyl)-2,2-dimethyl-3,4-dihydro-2H,6H-pyrano[3,2-g]chromen-6-one (CAS: 63807-90-9) is typically synthesized via a multi-step process involving the condensation of 2,2-dimethylchromen-3-one with 4-hydroxyacetophenone in the presence of a Lewis acid catalyst. The final step involves the reduction of the chromene ring, followed by hydroxylation. The overall yield is around 70%, with high selectivity for the desired dihydro product.

5-Hydroxy-7-(4-hydroxyphenyl)-2,2-dimethyl-3,4-dihydro-2H,6H-pyrano[3,2-g]chromen-6-one (CAS: 63807-90-9) is primarily used in the pharmaceutical industry for the development of novel drugs and as a key intermediate in the synthesis of biologically active compounds. It also finds applications in the sensor industry for the development of selective detection devices due to its unique chemical structure.

When handling 5-Hydroxy-7-(4-hydroxyphenyl)-2,2-dimethyl-3,4-dihydro-2H,6H-pyrano[3,2-g]chromen-6-one (CAS: 63807-90-9), appropriate personal protective equipment (PPE) such as gloves, goggles, and a laboratory coat should be worn. The compound should be handled in a fume hood to minimize exposure. In case of a spill, it should be cleaned up using absorbent material and discarded according to local hazardous waste regulations. Always refer to the Material Safety Data Sheet (MSDS/SDS) for detailed safety information.