(TRIETHYLSILYL)ACETYLENE

Product Name: (TRIETHYLSILYL)ACETYLENE
CAS No.: 1777-03-3
Chemical Name: (TRIETHYLSILYL)ACETYLENE
Synonyms: ETHYNYLTRIETHYLSILANE;DK595;DKSI030;DKFELEX0149;TRIETHYLETHYNYLSILANE;Triethylsilyl)acetylen;riethyl(ethynyl)silane;(TRIETHYLSILYL)ACETYLENE;Silane, triethylethynyl-;(Triethylsilyl)acetylene,97%
CBNumber: CB6693857
Molecular Formula: C8H16Si
Formula Weight: 140.3
MOL File: 1777-03-3.mol

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(TRIETHYLSILYL)ACETYLENE Property

Melting point:: 95-97 °C(Solv: chloroform (67-66-3); hexane (110-54-3))
Boiling point:: 136 °C
Density: 0.783 g/mL at 25 °C(lit.)
refractive index: n20/D 1.433(lit.)
Flash point:: 63 °F
storage temp.: Flammables area
form: liquid
Specific Gravity: 0.783
color: colorless
Hydrolytic Sensitivity: 4: no reaction with water under neutral conditions
BRN: 1743814
InChI: InChI=1S/C8H16Si/c1-5-9(6-2,7-3)8-4/h1H,6-8H2,2-4H3
InChIKey: FWSPXZXVNVQHIF-UHFFFAOYSA-N
SMILES: [Si](CC)(CC)(CC)C#C
CAS DataBase Reference: 1777-03-3(CAS DataBase Reference)

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Safety

Hazard Codes: F,Xi
Risk Statements: 11-36/37/38
Safety Statements: 16-26-36/37/39
RIDADR: UN 1993 3/PG 2
WGK Germany: 3
TSCA: No
HazardClass: 3
PackingGroup: II
HS Code: 29319090
Storage Class: 3 - Flammable liquids
Hazard Classifications: Flam. Liq. 2

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P370+P378In case of fire: Use … for extinction.

P403+P235Store in a well-ventilated place. Keep cool.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 346977
Product name: (Triethylsilyl)acetylene
Purity: 97%
Packaging: 5g
Price: $81.2
Updated: 2025/07/31

TCI Chemical

Product number: T2387
Product name: Triethylsilylacetylene
Purity: >96.0%(GC)
Packaging: 1g
Price: $22
Updated: 2025/07/31

TCI Chemical

Product number: T2387
Product name: Triethylsilylacetylene
Purity: >96.0%(GC)
Packaging: 5g
Price: $64
Updated: 2025/07/31

Strem Chemicals

Product number: 14-7850
Product name: Triethylsilylacetylene, min. 97%
Packaging: 5g
Price: $101
Updated: 2024/03/01

Strem Chemicals

Product number: 14-7850
Product name: Triethylsilylacetylene, min. 97%
Packaging: 25g
Price: $441
Updated: 2024/03/01

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(TRIETHYLSILYL)ACETYLENE Chemical Properties,Usage,Production

Chemical Properties

Clear colorless to faintly yellow liquid

Uses

(Triethylsilyl)acetylene may be used in the synthesis of triethylsilylethynyl anthradithiophenes, such as :

2,8-dimethyl-5,11-bis(triethylsilylethynyl)ADT (ADT= anthradithiophene)
2,8-diethyl-5,11-bis(triethylsilylethynyl)ADT
2,8-dipropyl-5,11-bis(triethylsilylethynyl)ADT

General Description

(Triethylsilyl)acetylene, a bulky trialkylsilyl-protected alkyne, undergoes Cadiot-Chodkiewicz cross-coupling reaction with various bromoalkynes to yield synthetically useful unsymmetrical diynes. Rhodium-catalyzed dimerization of (triethylsilyl)acetylene has been reported.

Synthesis

CN201610096292.2 provides a method for synthesizing triethylsilylacetylene with readily available raw materials, a simple synthesis process, good controllability and good repeatability. The object of the present invention can be realized by the following technical solution: a synthesis method of triethylsilylacetylene, which is based on triethyl halosilane and acetylene metallization as raw materials, adding triethyl halosilane to an organic solution of acetylene metallization, heating and refluxing the reaction for 6-13 hours, then cooling to room temperature, adding ice water to quench the reaction, and then collecting the fraction at 42-48??C after decompression distillation, i.e., the production of Triethylsilylacetylene. The method specifically includes the following steps:

(1) preparing an organic solution of acetylene metallization, according to the molar ratio of acetylene metallization to triethyl halosilane of 1-1.3:1, slowly adding triethyl halosilane dropwise to the organic solution of acetylene metallization at 0-5??C under the protection of an inert gas;

(2) after the dropwise addition of triethylhalosilane, slowly increase the temperature to 60-100 ??, reflux reaction 6-10 hours, cooled to room temperature, add ice water to quench the reaction, extraction, retain the organic phase;

(3) The organic phase is washed and dried, then pumped and filtered, and then distilled under reduced pressure to collect the 42-48 ?? fraction, washed with water to remove inorganic salts can be.

(TRIETHYLSILYL)ACETYLENE Preparation Products And Raw materials

Raw materials

Preparation Products

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(TRIETHYLSILYL)ACETYLENE Suppliers

Belgium 1 China 212 Germany 3 India 4 Japan 2 Jordan 1 Singapore 1 Slovakia 1 Switzerland 1 The Netherlands 1 United Kingdom 4 United States 24 Global 255

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View Lastest Price from (TRIETHYLSILYL)ACETYLENE manufacturers

Hebei Chuanghai Biotechnology Co., Ltd

Product: (TRIETHYLSILYL)ACETYLENE 1777-03-3
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2024-10-30

Hebei Yanxi Chemical Co., Ltd.

Product: (TRIETHYLSILYL)ACETYLENE 1777-03-3
Price: US $40.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 10 tons
Release date: 2023-09-27

Shaanxi Dideu New Materials Co. Ltd

Product: (TRIETHYLSILYL)ACETYLENE 1777-03-3
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 10000KGS
Release date: 2025-02-26

1777-03-3, (TRIETHYLSILYL)ACETYLENERelated Search:

Triethylmethylammonium chloride (TRIISOPROPYLSILYL)ACETYLENE (TRIETHYLSILYL)ACETYLENE 4-(TRIETHYLSILYL)-3-BUTYN-1-OL Acetylene 3-(Triethylsilyl)-2-propynal 1-TRIETHYLSILYL-4-(TRIETHLYLSILYLOXY)-1-BUTYNE 5-(TRIETHYLSILYL)-4-PENTYN-1-OL 1-CHLORO-5-TRIETHYLSILYL-4-PENTYNE 1-TRIISOPROPYLSILYL-1-PROPYNE BIS(TRIETHYLSILYL)ACETYLENE 97 3-TRIISOPROPYLSILYL-2-PROPYN-1-OL 4-ACETOXY-3-[(TRIISOPROPYLSILANYL)ETHYNYL]-BENZOIC ACID METHYL ESTER 1,6-BIS-(TRIISOPROPYLSILYL)-3,4-BIS[2-(TERT-BUTYLDIMETHYLSILYL)ETHYNYL]-3-HEXEN-1,5-DIYNE 3-BROMO-1-(TRIETHYLSILYL)-1-PROPYNE 3-(TRIETHYLSILYL)-2-PROPYN-1-OL 1-(TRIMETHYLSILYL)-5-(TRIISOPROPYLSILYL)-1,4-PENTADIYN-3-OL 1,5-DI(TRIISOPROPYLSILYL)-1,4-PENTADIYN-3-OL

Triethylsilylacetylene, min. 97%

(Triethylsilyl)acetylene,97%

Ethynyltriethylsilane Triethylethynylsilane

Triethylsilyl)acetylen

TRIETHYLETHYNYLSILANE

(TRIETHYLSILYL)ACETYLENE

ETHYNYLTRIETHYLSILANE

(TRIETHYLSILYL)ACETYLENE, 97%(TRIETHYLSILYL)ACETYLENE, 97%(TRIETHYLSILYL)ACETYLENE, 97%

Triethylsilylacetylene,min.97%

Silane, triethylethynyl-

riethyl(ethynyl)silane

Triethylmethylsilyl acetylene

DK595

DKFELEX0149

DKSI030

1777-03-3

C8H16Si

C2H53SiCCH

HCCSiCH2CH33

C2H53SiC8801CH

Alkynes

Building Blocks

Organic Building Blocks

Terminal

organosilicon compound

Si (Classes of Silicon Compounds)

Si-(C)4 Compounds

Acetylenes

Ethynylsilanes

Functionalized Acetylenes