4-Membered Rings
Compounds with one heteroatom:
| Heteroatom | Saturated | Unsaturated |
|---|---|---|
| Nitrogen | Azetidine | Azete |
| Oxygen | Oxetane | Oxete |
| Sulfur | Thietane | Thiete |
Compounds with two heteroatoms:
| Heteroatom | Saturated | Unsaturated |
|---|---|---|
| Nitrogen | Diazetidine | |
| Oxygen | Dioxetane | Dioxete |
| Sulfur | Dithietane | Dithiete |
Read more about this topic: Heterocyclic Compound
Famous quotes containing the word rings:
“It is told that some divorcees, elated by their freedom, pause on leaving the courthouse to kiss a front pillar, or even walk to the Truckee to hurl their wedding rings into the river; but boys who recover the rings declare they are of the dime-store variety, and accuse the throwers of fraudulent practices.”
—Administration in the State of Neva, U.S. public relief program. Nevada: A Guide to the Silver State (The WPA Guide to Nevada)