5-Hexyl-2,2'-bithiophene(CAS: 173448-31-2)

5-Hexyl-2,2'-bithiophene is a crystalline compound with a molecular weight of approximately 258.39 g/mol. It has limited solubility in common organic solvents but good solubility in dimethyl sulfoxide (DMSO). The compound is physiologically inert but reactive towards halogenation and nucleophilic substitution. It is stable under normal storage conditions but should be protected from moisture and light.

5-Hexyl-2,2'-bithiophene is synthesized via a thiol-yne coupling reaction, where hexanethiol and 2,2'-bithiophene are reacted under mild conditions in the presence of a palladium catalyst. The reaction is known for its high selectivity and yield, typically around 90%. Other methods include the Stille coupling or Sonogashira coupling, depending on the availability of reagents.

5-Hexyl-2,2'-bithiophene is primarily used in the semiconductor and polymer industries due to its electronic properties. It is used in organic light-emitting diodes (OLEDs), solar cells, and as a monomer in conducting polymers. Additionally, it has applications in the development of chemical sensors and as a component in electronic ink displays.

When handling 5-Hexyl-2,2'-bithiophene, it is important to wear appropriate personal protective equipment (PPE) including gloves, goggles, and a lab coat. The compound should be used in a well-ventilated area or a fume hood to avoid inhalation. Spills should be cleaned up using appropriate absorbent materials, and the area should be flushed with water. Always refer to the Safety Data Sheet (SDS) for detailed safety information and emergency procedures.