paradiiodobenzene
p-Diiodobenzene, also known as 1,4-diiodobenzene, is an organoiodine compound with the chemical formula C6H4I2. It is a white crystalline solid at room temperature. It is one of three possible isomers of diiodobenzene, the other two being o-diiodobenzene (1,2-diiodobenzene) and m-diiodobenzene (1,3-diiodobenzene). In p-diiodobenzene, the two iodine atoms are located at opposite positions on the benzene ring.
This compound is typically synthesized through the iodination of benzene or by the Sandmeyer reaction involving
p-Diiodobenzene finds applications as a building block in organic synthesis. It is commonly used in cross-coupling