22dihydroxy11biaryl

2,2'-dihydroxy-1,1'-biphenyl, often referred to as 2,2'-biphenol, is an organic compound with the chemical formula C12H10O2. It consists of two phenol rings joined by a single bond at the ortho positions. The symmetrical arrangement of hydroxyl groups on adjacent carbons of the biphenyl core is a key structural feature. This molecule exists as a white to off-white crystalline solid at room temperature.

2,2'-dihydroxy-1,1'-biphenyl exhibits a range of chemical properties due to the presence of the phenolic hydroxyl groups. These groups are weakly acidic and can participate in hydrogen bonding. The molecule can undergo reactions typical of phenols, such as etherification and esterification. Its structure also allows for chelation with various metal ions, forming stable complexes. This chelating ability is of significant interest in coordination chemistry and catalysis.

The compound finds applications in several areas. It serves as a ligand in organometallic chemistry, forming complexes with transition metals that are employed as catalysts in various organic transformations. These catalysts can be used in reactions like cross-coupling, polymerization, and asymmetric synthesis. Furthermore, 2,2'-dihydroxy-1,1'-biphenyl and its derivatives have been explored for their potential use in materials science, including the development of polymers with specific optical or electronic properties. Its antioxidant properties are also a subject of research.