1,2-Dioxin

• Dioxin
• O- dioxin

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1,2- dioxin, and O- dioxin, is a highly unstable oxygen-containing heterocyclic organic compound could not be isolated. Self- substituted derivatives are very unstable, for example, the 1,4- diphenyl-2 ,3- benzodioxine.

Structure of the transient 1,4- diphenyl- 2,3- benzodioxins.

(no ) stable 1,2- dioxin

1990 erroneously the 3,6-bis (p-tolyl ) -1,2- dioxin- stable derivative of said first held. However, it has been shown that it is the compound is not a derivative of a 1,2- dioxin (1), but a ( thermodynamically much more stable )-dione (2).

Stable derivatives

Replacing the oxygen groups with sulfur groups, we obtain so-called 1,2- dithiins. These are often natural products and have an antimicrobial effect, such as the Thiarubrine. Also, 1,2- Diselenine could be isolated. Finally, the isomer 1,4- dioxin (p- dioxin ), in contrast to the 1,2- dioxin is stable.