The thiophene fragmentation reaction towards bis ene‐yne‐compounds has been systematically investigated. The convenient accessibility of these multifunctional building blocks paths the way for novel applications in functional organic materials.
Iodination of a series of benzene and thiophene derivatives by potassium dichloroiodate monohydrate was studied with and without a solvent. The liquid substrates tend to be more reactive in water while the solid substrates afford better yields in dichloromethane or under the solvent-free conditions. The 2-substituted thiophenes show good to excellent yields whereas the yield for 3-substituted and 3