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33577-16-1 - Methyl (methylthio)methyl sulfoxide, 97% - Formaldehyde dimethyl thioacetal monoxide - Methyl (methylsulfinyl)methyl sulfide - L00510 - Alfa Aesar

L00510 Methyl (methylthio)methyl sulfoxide, 97%

Codice CAS
33577-16-1
Sinonimi
Formaldehyde dimethyl thioacetal monoxide
Methyl (methylsulfinyl)methyl sulfide

Dimensioni Prezzo ($) Quantità Disponibilità
10g 50,40
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Methyl (methylthio)methyl sulfoxide, 97%

MDL
MFCD00002091
EINECS
251-577-2

Proprietà chimiche

Formula
C3H8OS2
Peso formula
124.22
Punto di ebollizione
222-226°
Punto di infiammabilità
>110°(230°F)
Densità
1.222
Indice di rifrazione
1.5520
Sensibilità
Hygroscopic

Letteratura

Readily undergoes metallation with NaH, n-BuLi, etc. to give a useful formaldehyde anion synthon. Products are readily hydrolyzed by acid.

/n

Monoalkylation with alkyl halides: Tetrahedron Lett., 3151 (1971), or terminal epoxides leads to the homologated aldehydes: J. Org. Chem., 39, 3645 (1974). Dialkylation with alkyl halides affords, after hydrolysis, symmetrical ketones: Synthesis, 117 (1974). This reaction has also been applied to the synthesis of cyclobutanones and other cycloalkanones: Tetrahedron Lett., 3653 (1974); 2767 (1975). A Knoevenagel reaction with aryl aldehydes gives the ketene thioacetal monosulfoxide, readily solvolyzed in alcoholic HCl to an arylacetic ester: Tetrahedron Lett., 1383 (1972):

/n

With ketones, the lithio-derivative gives, after hydrolysis, ɑ-hydroxy aldehydes, not readily available by other routes: Tetrahedron Lett., 2681 (1972). Elimination from the intermediate adduct has also been used as a route to substituted acetic acids: Synthesis, 880 (1979).

/n

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni precauzionali: P260u-P201-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310a-P405-P501a

Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
906789
Codice tariffe armonizzato
2930.90
TSCA
Yes

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