1,2-Dithietane

Chemical compound

1,2-Dithietane is a dithietane. It is a heterocyclic compound with a four-membered ring. Two sulfur atoms are adjacent, and the molecule is saturated. 1,2-Dithietane has not been produced as of 2000. The combination of ring strain, and lone pairs of electrons, which repel each other, on the sulfur atoms makes the sulfur-sulfur bond too weak to produce the molecule. However a few derivatives are known. 3,4-Diethyl-1,2-dithietane 1,1-dioxide has one sulfur fully oxidised. Dithiatopazine is a tricyclic compound with the -S-S- as a bridge. 1,2-Dithietan-3-one, the ketone of 1,2-dithietane, was produced in 2008 by reacting α-dithiolactone with ethoxycarbonylformonitrile oxide. 4,4-di-tert-butyl-1,2-dithietan-3-one and the spiro compound 5,5,9,9-tetramethyl-1,2-dithiaspiro[3.5]nonan-3-one have also been made.

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