Trimethylsulfoxonium iodide

Trimethylsulfoxonium iodide
Names


IUPAC name S,S,S-Trimethylsulfoxonium iodide
Other names Trimethylsulphoxonium iodide; Trimethyloxosulfonium iodide
Identifiers
CAS Number	1774-47-6^Y
3D model (JSmol)	Interactive image
ChemSpider	67079^N
ECHA InfoCard	100.015.641
EC Number	217-204-2
PubChem CID	74498
InChI InChI=1S/C3H9OS.HI/c1-5(2,3)4;/h1-3H3;1H/q+1;/p-1^N Key: BPLKQGGAXWRFOE-UHFFFAOYSA-M^N
SMILES O=[S+](C)(C)C.[I-]
Properties
Chemical formula	C₃H₉IOS
Molar mass	220.07 g·mol⁻¹
Melting point	208 to 212 °C (406 to 414 °F; 481 to 485 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N (what is ^YN ?)
Infobox references

Trimethylsulfoxonium iodide is a sulfoxonium salt. It is used to generate dimethyloxosulfonium methylide by reaction with sodium hydride. The latter compound is used as a methylene-transfer reagent, and is used to prepare epoxides.

This compound is commercially available. It may be prepared by the reaction of dimethyl sulfoxide and iodomethane:

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