Bisaryl

Bisaryl refers to a class of organic compounds characterized by the presence of two aryl groups connected by a single bond. An aryl group is an aromatic ring, such as a phenyl group (C6H5). Therefore, a bisaryl molecule consists of two such aromatic rings directly linked together. The simplest example of a bisaryl is biphenyl, where two phenyl rings are joined by a C-C single bond.

The chemical and physical properties of bisaryl compounds are largely determined by the nature and substitution patterns of the aryl rings. These compounds can exhibit interesting electronic and photophysical properties due to the conjugation between the aromatic systems. Bisaryls are important building blocks in organic synthesis and are found in various materials, including liquid crystals, organic light-emitting diodes (OLEDs), and pharmaceuticals.

The synthesis of bisaryl compounds can be achieved through several chemical reactions, notably cross-coupling reactions like the Suzuki-Miyaura coupling, Stille coupling, or Ullmann reaction. These methods allow for the controlled formation of the C-C bond between the two aryl fragments, enabling the construction of complex bisaryl structures with specific functionalities. The study of bisaryls continues to be an active area of research, exploring their applications in diverse fields of chemistry and materials science.