1,2-Dichlor-1,1,2,2-tetramethyldisilan

Bezeichnung:1,2-Dichlor-1,1,2,2-tetramethyldisilan

CAS-Nr4342-61-4

Englisch Name:1,2-DICHLOROTETRAMETHYLDISILANE

CBNumberCB4280343

SummenformelC4H12Cl2Si2

Molgewicht187.22

MOL-Datei4342-61-4.mol

Synonyma

1,2-Dichlor-1,1,2,2-tetramethyldisilan

1,2-Dichlor-1,1,2,2-tetramethyldisilan physikalisch-chemischer Eigenschaften

Siedepunkt	148-149 °C(lit.)
Dichte	1.005 g/mL at 25 °C(lit.)
Brechungsindex	n20/D 1.454(lit.)
Flammpunkt	99 °F
Aggregatzustand	liquid
Wichte	1.005
Farbe	Colorless to Almost colorless
Hydrolytic Sensitivity	8: reacts rapidly with moisture, water, protic solvents
InChIKey	SFAZXBAPWCPIER-UHFFFAOYSA-N
CAS Datenbank	4342-61-4
EPA chemische Informationen	Disilane, 1,2-dichloro-1,1,2,2-tetramethyl- (4342-61-4)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	14-34-10
S-Sätze:	26-27-36/37/39-45
RIDADR	UN 2986 8/PG 2
WGK Germany	3
HazardClass	8/3
PackingGroup	II
HS Code	29319090

Gefahreninformationscode (GHS)

1,2-DICHLOROTETRAMETHYLDISILANE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R14:Reagiert heftig mit Wasser.
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S27:Beschmutzte, getränkte Kleidung sofort ausziehen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Beschreibung
1,2-DICHLOROTETRAMETHYLDISILANE is a kind of widely used organic silicon intermediates and usually be used as organic silicon blocking agent in the synthesis，such as，Si-Si Compounds; Dichlorosilanes (for Polysilanes); Electroluminescence; Functional Materials; Monochlorosilanes; Reagent for High-Performance Polymer Research; Si (Classes of Silicon Compounds); Si-Cl Compounds; Silicon Compounds (for Synthesis); Synthetic Organic Chemistry; Precursors by Metal; Vapor Deposition Precursors.
Verwenden
1,2-DICHLOROTETRAMETHYLDISILANE is used as an intermediate for preparing other organical compounds. It is also used in aqueous polymer preparation as well as a laboratory reagent. 1,2-Dihydroxy-tetramethyldisilane has been synthesized by hydrolysis of 1,2-dichloro-tetramethyldisilane and characterized by IR, NMR, MS and X-ray structure analysis.
Synthese
Tetramethyldisilane (XIV, 0.3 mmol), excess MeSiC (IV, 1.7 mmol), diglyme (0.35 ml) and n-Bu4PCI (0.02 mmol) as catalyst were placed in an NMR tube that was cooled to -196 °C (liquid nitrogen). After evacuation in vacuo the NMR tube was sealed, warmed to r.t. and the reaction course was monitored by NMR spectroscopy. Me2SiHCI III was not detected at r.t. but the disilane was chlorinated to give disilane XV (12%). Reduction of MeSiC (H-transfer from disilane XIV) yielded V in small amounts (1.2%) while target product VI was formed in nearly 40% yield (80 °C/+4 h). At 120 °C (additional 19 h) disilane XV was reduced by about a half (1 1.9% → 6.7%) to form dimethyldichlorosilane II in 13.8% yield. The catalyst remained unreacted as shown by31P-NMR spectroscopy.

1,2-DICHLOROTETRAMETHYLDISILANE Upstream-Materialien And Downstream Produkte

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