Trimethylsilylacetylen

Bezeichnung:Trimethylsilylacetylen

CAS-Nr1066-54-2

Englisch Name:Trimethylsilylacetylene

CBNumberCB3175930

SummenformelC5H10Si

Molgewicht98.22

MOL-Datei1066-54-2.mol

Synonyma

Trimethylsilylacetylen

Trimethylsilylacetylen physikalisch-chemischer Eigenschaften

Schmelzpunkt	>0°C
Siedepunkt	53 °C(lit.)
Dichte	0.695 g/mL at 25 °C(lit.)
Dampfdruck	4.18 psi ( 20 °C)
Brechungsindex	n20/D 1.388(lit.)
Flammpunkt	<−30 °F
storage temp.	Store below +30°C.
Löslichkeit	Miscible with organic solvents.
Aggregatzustand	liquid
Farbe	colorless
Wichte	0.695
Wasserlöslichkeit	reacts
Hydrolytic Sensitivity	4: no reaction with water under neutral conditions
BRN	906752
InChIKey	CWMFRHBXRUITQE-UHFFFAOYSA-N
CAS Datenbank	1066-54-2(CAS DataBase Reference)
NIST chemische Informationen	(Trimethylsilyl)acetylene(1066-54-2)
EPA chemische Informationen	Trimethylsilylacetylene (1066-54-2)

Sicherheit

Kennzeichnung gefährlicher	F,Xi
R-Sätze:	11-36/37/38
S-Sätze:	16-26-36
RIDADR	UN 1993 3/PG 2
WGK Germany	-
Hazard Note	Flammable/Irritant
TSCA	T
HazardClass	3
PackingGroup	II
HS Code	29310095

Gefahreninformationscode (GHS)

Trimethylsilylacetylene Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
CLEAR COLORLESS LIQUID
Physikalische Eigenschaften
bp 53 °C; d 0.695 g cm?3.
Verwenden
Ethynyltrimethylsilane was used in: ? microwave-assisted, one-pot, three-step Sonogashira cross-coupling-desilylation-cycloaddition reaction for the preparation of 1,4-disubstituted 1,2,3-triazoles synthesis of poly(ethynyltrimethylsilane) containing Pd (II) coordination sites pyrazole synthesis via 1,3-dipolar cycloaddition of diazo compounds to acetylenes
Verwenden
Trimethylsilylacetylene is a valuable reagent used in ethynylation by palladium(0)-catalyzed coupling/condensation with aryl and vinyl halides and triflates, or by nucleophilic attack of the corresponding acetylide on electrophilic centers; reacts with alkyl iodides, tin hydrides,6 and dichloroketene in a regioselective and stereoselective manner, participating in the following synthesis reactions: Ethynylations, Palladium(0)-Catalyzed Coupling Reactions,Reaction of Trimethylsilylacetylides with Electrophiles, Radical-Initiated and Transition Metal-Catalyzed Additions, Cycloaddition Reactions, Ethynylations, Cycloaddition Reactions, Further Transformations etc.
Verwenden
(Trimethylsilyl)acetylene is used in the preparation of trimethylsilanyl-propiolic acid ethyl ester by reacting with carbonochloridic acid ethyl ester as well as in the synthesis of iodoalkenes by radical addition of perfluoroalkyl iodides. It is used as a nucleophile in Friedel-Crafts type acylations and alkylations reactions, as a ligand in organometallic chemistry and an useful reagent in cycloaddition reactions. It acts as a precursor to lithium trimethylsilylacetylide It finds application in the synthesis of (±)-estrone.
Allgemeine Beschreibung
Laser-induced polymerization of gaseous ethynyltrimethylsilane was used for efficient chemical vapour deposition of polycarbosilane films. Ethynyltrimethylsilane acts as substrate for nickel-catalyzed cross-coupling with benzonitriles.
läuterung methode
Distil it through an efficient column. The IR has bands at max 2041 (CC) and 3289 (C-H) cm-1. [Kr.hnke & Goss Chem Ber 92 30 1959, Beilstein 4 IV 3937.]

Trimethylsilylacetylene Upstream-Materialien And Downstream Produkte

Trimethylsilylacetylen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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