:1,3-Dithietane
{{chembox
| Verifiedfields = changed
| verifiedrevid = 477205422
| ImageFile=1,3-dithietane.png
|ImageFile2=1,3-Dithietane molecule ball.png
| ImageSize=120px
| PIN=1,3-Dithietane
| SystematicName = 1,3-Dithiacyclobutane
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo=287-53-6
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 119906
| PubChem=136129
| UNII = XQ54M93UBZ
| InChI = 1/C2H4S2/c1-3-2-4-1/h1-2H2
| InChIKey = ITXACGPMGJCSKF-UHFFFAOYAY
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C2H4S2/c1-3-2-4-1/h1-2H2
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = ITXACGPMGJCSKF-UHFFFAOYSA-N
| SMILES=C1SCS1
}}
|Section2={{Chembox Properties
| Formula=C2H4S2
| MolarMass=92.18 g/mol
| Appearance=
| Density=
| MeltingPt=
| BoilingPt=
| Solubility=
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|Section3={{Chembox Hazards
| MainHazards=
| FlashPt=
| AutoignitionPt =
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1,3-Dithietane is a dithietane. It is a colorless, crystalline, unpleasant-smelling solid. It was first prepared in 1976 by the reaction of bis(chloromethyl) sulfoxide with sodium sulfide to give 1,3-dithietane 1-oxide, followed by THF-borane reduction.{{cite journal |last=Block |first=E |author2=Corey, ER |author3=Penn, RE |author4=Renken, TL |author5= Sherwin, PF |title=1,3-Dithietane |journal=J. Am. Chem. Soc.|year=1976|volume=98|issue=18|pages=5715–5717|doi=10.1021/ja00434a061}}{{cite journal |last=Block |first=E |author2=Corey, ER |author3=Penn, RE |author4=Renken, TL |author5=Sherwin, PF |author6=Bock, H |author7=Hirabayashi, T |author8=Mohmand, S |author9= Solouki, B |title=Synthesis and Thermal Decomposition of 1,3-Dithietane and its S-Oxides |journal=J. Am. Chem. Soc.|year=1982|volume=104|issue=11|pages=3119–3130|doi=10.1021/ja00375a030}}
File:Synthesis of 1,3-dithietane.svg
Examples of compounds bearing this functional group include the antibiotic Cefotetan and the pesticide Fosthietan.