Selenofen is an aromatic five-membered heterocycle containing one selenium atom in the cycle. Colorless mobile liquid with a peculiar odor, boiling point 110.5 ° C, soluble in many organic solvents.
| Selenofen | |
|---|---|
 | |
 | |
| Are common | |
| Chem. formula | C 4 H 4 Se |
| Physical properties | |
| Molar mass | 131.03 g / mol |
| Thermal properties | |
| T. melt. | -38 ° C |
| T. bale. | 110.5-111 ° C |
| Classification | |
| Reg. CAS number | 288-05-1 |
| PubChem | |
| Reg. EINECS number | |
| Smiles | |
| Inchi | |
| Chebi | |
| ChemSpider | |
It was first synthesized in 1927 by the interaction of acetylene with selenium at 400 ° C. It can also be obtained by the action of hydrogen selenium on furan in the presence of magnesium oxide. [one]
Selenofen is easier than benzene to enter into the electrophilic and nucleophilic substitution reactions. Reactions proceed predominantly to position 2, subsequent substitution, mainly to position 5. [2]
Many of its derivatives are used as drugs , extractants for the separation of metals , antioxidants .