| 11. | Tetrabromobenzene can react with butyllithium and furan to form a tetrahydroanthracene
|
| 12. | The asymmetric hydrogenation of furans and benzofurans has so far proven challenging.
|
| 13. | Alternatively, rosefuran has been prepared from other furan derivatives.
|
| 14. | The class of compounds containing such rings are also referred to as furans.
|
| 15. | Furan is therefore listed as a possible human carcinogen.
|
| 16. | The chemical structure of furanocoumarins consists of a furan ring fused with coumarin.
|
| 17. | Two unintentionally manufactured families of compounds, dioxins and furans, complete the list.
|
| 18. | The prototypical structure consists of four six-membered rings and a furan ring.
|
| 19. | Ma and coworkers developed an alternative method for accessing furans utilizing the Stetter reaction.
|
| 20. | The resulting epoxycarbonyl can be cyclized to a furan under acidic or basic conditions.
|
