Chemical NameTrimethylsulfonium iodide 2181-42-2 Trimethylsulphonium iodide MFCD00011632 Sulfonium, trimethyl-, iodide
UsageIt 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 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.
204.08 g/mol Grams (g)
C3H9IS
208 to 212 C
Powder
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Product Description
Trimethyl sulfoxonium iodide (TMSI) is a chemical compound with the molecular formula (CH3)3SOI. It is a white to yellowish crystalline solid that is soluble in water and commonly used as a reagent in organic synthesis. TMSI is used as a source of iodide ions in various reactions, such as nucleophilic substitution and iodination reactions, and as a catalyst for various reactions, such as esterification and alkylation. TMSI is also used in the synthesis of pharmaceuticals, agrochemicals, and other organic compounds. It is considered a relatively safe chemical, although it can cause skin and eye irritation upon contact and should be handled with appropriate safety measures, including the use of protective clothing and gloves.