| Identification | Back Directory | [Name]
Dimethyl selenoxide | [CAS]
4371-90-8 | [Synonyms]
Dimethyl selenoxide
Dimethylselenium(IV) oxide
Methane, seleninylbis- (9CI) | [Molecular Formula]
C2H6OSe | [MOL File]
4371-90-8.mol | [Molecular Weight]
125.03 |
| Hazard Information | Back Directory | [Uses]
Dimethyl selenoxide can be used as a mild oxidant; an electrophilic reagent for olefin oxidative selenization; and an aromatic substitution electrophilic reagent. | [Preparation]
Dimethyl selenoxide is readily obtained by oxidation of dimethyl selenide with 30% aqueous Hydrogen Peroxide at -10 °C, or with Ozone in chloroform at -50 °C; also prepared by treating dimethylselenium dibromide with Silver(II) Oxide in methanol. | [storage]
Hygroscopic; decomposes in ether, acetonitrile, THF, and CS2; since the reactions of dimethyl selenoxide often produce volatile organoselenium derivatives having a highly unpleasant odor, use in a well-ventilated fume hood. |
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