3-oxo-1,3-dihydroisobenzofuran-1-ylphosphonic Acid丨CAS 61260-15-9

3-Oxo-1,3-dihydroisobenzofuran-1-ylphosphonic acid is a phosphonate-containing heterocyclic compound widely used in organic synthesis, medicinal chemistry, and material science. It serves as a key intermediate in the preparation of phosphonate esters, bioactive molecules, and enzyme inhibitors, particularly those targeting phosphatases and other phosphorylating enzymes. The compound is also employed in the design of antiviral, antibacterial, and anticancer agents, where the phosphonic acid moiety provides metabolic stability and mimics phosphate groups in biological systems. Additionally, it is used in research for the synthesis of organophosphorus derivatives and as a building block for studying structure-activity relationships in drug development.

The compound offers significant advantages due to its stable phosphonic acid group and reactive isobenzofuran core. Its phosphonate functionality provides strong binding affinity in biological systems, enhancing potential therapeutic effects when incorporated into drug candidates. The compound is chemically stable, soluble in polar solvents, and compatible with various synthetic transformations, allowing efficient derivatization and incorporation into complex molecules. Its dual functionality enables selective reactions at both the phosphonate and ketone positions, facilitating multi-step syntheses and increasing versatility in chemical design. These properties make it a valuable reagent for pharmaceutical development and advanced organic synthesis.