Thiete

Names
Preferred IUPAC name

2H-Thiete

Other names

1-Thiacyclobut-2-ene

Identifiers

CAS Number

* 503-31-1

3D model (JSmol)

* Interactive image

ChemSpider |

* 2659702 N

PubChem CID

* 3415867

InChI

* InChI=1S/C3H4S/c1-2-4-3-1/h1-2H,3H2 N

Key: HPINPCFOKNNWNW-UHFFFAOYSA-N N

* InChI=1/C3H4S/c1-2-4-3-1/h1-2H,3H2

Key: HPINPCFOKNNWNW-UHFFFAOYAF

SMILES

* C1C=CS1

Properties

Chemical formula

| C3H4S
Molar mass | 72.12886

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)
Infobox references

Tracking categories (test):

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Thiete is a heterocyclic compound containing an unsaturated four-membered ring with three carbon atoms and one sulfur atom.[1][2][3] It is more commonly encountered not on its own, but in anellated derivatives, several of which have been synthesized. Thietes are generally not very stable.[4]

## Contents

* 1 Structure
* 2 Derivatives
* 3 See also
* 4 References

## Structure

Thiete is a valence isomer of the compound thioacrolein (CH2=CHCH=S) and undergoes ring opening to it at temperatures below 400 °C.[5] Thiete has been shown to be planar, with a C-S-C angle of 76.8 degrees.[6]

## Derivatives

Benzothietes are thietes annulated to benzo group. Such species are prepared by flash vacuum pyrolysis of 2-mercaptobenzyl alcohols. They are precursors to other S-heterocycles.[7]

Thiete 1,1-dioxides are sulfones, the parent being C3H4SO2. They are more stable than the parent thietes.[8] Substituted thiete-1,1-dioxides can also be prepared by [2+2] cycloaddition of sulfenes and ynamines.

## See also

* Dithiete \- analogue with two sulfur atoms

## References

1. ↑ Leśniak, S; Lewkowski, J; Kudelska, W; Zając, A (2008). "Thietanes and Thietes: Monocyclic". Comprehensive Heterocyclic Chemistry III 2 (7): 389–428. doi:10.1016/B978-008044992-0.00207-8.
2. ↑ Block, E (2007). "Thietes and Derivatives". Sci. Synth. 33: 187–202.
3. ↑ Block, E; DeWang, M (1996). "Thietanes and Thietes: Monocyclic". Comprehensive Heterocyclic Chemistry II 1 (24): 773–802. doi:10.1016/B978-008096518-5.00024-1.
4. ↑ Dittmer, DC; Davis, FA (1965). "Evidence for a Thiete (Thiacyclobutene)". J. Am. Chem. Soc. 87 (9): 2064–2065. doi:10.1021/ja01087a048.
5. ↑ Block, Eric; Wang, Ming De (1996). "Thietanes and Thietes: Monocyclic". in Katritzky, Alan R.. Comprehensive Heterocyclic Chemistry II. 1B (2nd ed.). Elsevier. pp. 780. ISBN 978-0-08-096518-5.
6. ↑ Rodler, M; Bauder, A (1985). "Microwave spectrum, dipole moment and molecular structure of 1,2-dithiete". Chemical Physics Letters 114 (5–6): 575–578. doi:10.1016/0009-2614(85)85145-9.
7. ↑ Herbert Meier , Axel Mayer, Dieter Gröschl "Benzothietes—versatile Synthons For The Preparation Of Heterocycles" Sulfur Reports, 1994, volume 16, 23-56, doi:10.1080/01961779408048965
8. ↑ Thomas C. Sedergran and Donald C. Dittmer "Thiete 1,1-dioxide and Chlorothiete 1,1-dioxide" Org. Synth. 1984, vol. 62, 210.doi:10.15227/orgsyn.062.0210

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*[CID]: Compound ID