Benzopyran
 | It has been suggested that some content from this article be split into a separate article entitled benzopyrones. (Discuss) |
| Benzopyran | |
|---|---|
 | |
| General | |
| Systematic name | 2H-1-benzopyran |
| Chemical formula | C9H8O |
| CAS number | 254-04-6 |
| Properties | |
| Molecular weight | 132.159 |
| Density | 1.0993 g/cm3 (at 289 K) |
| Boiling point | 405 K (at .1342 atm) |
| Refractive index | 1.5869 (at 297 K and wavelength of 589 nm) |
Benzopyran is an polycyclic organic compound that results from the fusion of a benzene ring to a heterocyclic pyran ring. There are two isomers of benzopyran depending on which type of pyran is fused to the benzene ring. 2H-1-Benzopyran and 4H-1-benzopyran result from the fusion of 2H-pyran and 4H-pyran to the benzene ring respectively.
Benzopyrones are ketone derivatives of benzopyrans and they include:
Benzopyrones constitutes the skeleton of many flavonoid compounds.
See also
Categories
Articles to be split | Oxygen heterocycles