6-Membered Rings
Six-membered rings with a single heteroatom:
| Heteroatom | Saturated | Unsaturated |
|---|---|---|
| Nitrogen | Piperidine (Azinane is not used) | Pyridine (Azine is not used) |
| Oxygen | Oxane | Pyran (2H-Oxine is not used) |
| Sulfur | Thiane | Thiopyran (2H-Thiine is not used) |
| Silicon | Salinane | Siline |
| Germanium | Germinane | Germine |
| Tin | Stanninane | Stannine |
| Boron | Borinane | Borinine |
| Phosphorus | Phosphinane | Phosphinine |
| Arsenic | Arsinane | Arsinine |
With two heteroatoms:
| Heteroatom | Saturated | Unsaturated |
|---|---|---|
| Nitrogen / nitrogen | Piperazine | Diazines |
| Oxygen / nitrogen | Morpholine | Oxazine |
| Sulfur / nitrogen | Thiomorpholine | Thiazine |
| Oxygen / oxygen | Dioxane | Dioxine |
| Sulfur / sulfur | Dithiane | Dithiine |
With three heteroatoms:
| Heteroatom | Saturated | Unsaturated |
|---|---|---|
| Nitrogen | Triazine | |
| Oxygen | Trioxane |
With four heteroatoms:
| Heteroatom | Saturated | Unsaturated |
|---|---|---|
| Nitrogen | Tetrazine |
The hypothetical compound with six nitrogen heteroatoms would be hexazine.
Read more about this topic: Heterocyclic Compound
Famous quotes containing the word rings:
“If a man do not erect in this age his own tomb ere he dies, he shall live no longer in monument than the bell rings and the widow weeps.”
—William Shakespeare (1564–1616)