ChemicalBook >> CAS DataBase List >>Bis(trimethylsilyl)acetylene
Bis(trimethylsilyl)acetylene
- CAS No.
- 14630-40-1
- Chemical Name:
- Bis(trimethylsilyl)acetylene
- Synonyms
- BTMSA;1,2-Bis(trimethylsilyl)ethyne;BSTMA;Bis(trimethylsilyl)ethyne;1,2-BIS-TRIMETHYLSILANYL-ETHYNE;DK079;DK080;ICLA-002;TIMTEC-BB SBB008997;Ethynylbistrimethylsilanel
- CBNumber:
- CB4376321
- Molecular Formula:
- C8H18Si2
- Molecular Weight:
- 170.4
- MDL Number:
- MFCD00008276
- MOL File:
- 14630-40-1.mol
- MSDS File:
- SDS
Last updated:2023-05-15 10:43:28
| Melting point | 21-24 °C(lit.) |
|---|---|
| Boiling point | 136-137 °C(lit.) |
| Density | 0.752 g/mL at 25 °C(lit.) |
| refractive index |
n |
| Flash point | 29 °C |
| storage temp. | 2-8°C |
| solubility | soluble in Chloroform, Methanol |
| form | liquid |
| Specific Gravity | 0.770 |
| color | colorless |
| Water Solubility | MAY DECOMPOSE |
| Hydrolytic Sensitivity | 2: reacts with aqueous acid |
| BRN | 906870 |
| InChIKey | ZDWYFWIBTZJGOR-UHFFFAOYSA-N |
| CAS DataBase Reference | 14630-40-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Silane, 1,2-ethynediylbis[trimethyl-(14630-40-1) |
| EPA Substance Registry System | Silane, 1,2-ethynediylbis[trimethyl- (14630-40-1) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H315-H319-H335 | |||||||||
| Precautionary statements | P210-P302+P352-P305+P351+P338 | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 11-36/37/38-10 | |||||||||
| Safety Statements | 16-26-36 | |||||||||
| RIDADR | UN 1993 3/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29310095 | |||||||||
| NFPA 704 |
|
Bis(trimethylsilyl)acetylene price More Price(41)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 187437 | Bis(trimethylsilyl)acetylene 99% | 14630-40-1 | 10g | $65.6 | 2024-03-01 | Buy |
| Sigma-Aldrich | 187437 | Bis(trimethylsilyl)acetylene 99% | 14630-40-1 | 50g | $230 | 2024-03-01 | Buy |
| TCI Chemical | B1090 | Bis(trimethylsilyl)acetylene >97.0%(GC) | 14630-40-1 | 5g | $87 | 2024-03-01 | Buy |
| TCI Chemical | B1090 | Bis(trimethylsilyl)acetylene >97.0%(GC) | 14630-40-1 | 25g | $261 | 2024-03-01 | Buy |
| Alfa Aesar | A11960 | Bis(trimethylsilyl)acetylene, 99% | 14630-40-1 | 10g | $52.65 | 2024-03-01 | Buy |
Bis(trimethylsilyl)acetylene Chemical Properties,Uses,Production
Chemical Properties
clear colorless liquid after melting
Uses
In the presence of CpCo(CO)2 (cat. no. 245259), undergoes cycloaddition with 1,5-hexadiynes to form benzocyclobutenes.1
Uses
BTMSA is used as starting reagent in the synthesis of functionalized 4-R-1,2-bis(trimethylsilyl)benzenes. It is also used in the synthesis of (+)-brasilenyne2 and (β-diketanato)Ag(BTMSA). Bis(trimethylsilyl)acetylene is a ligand that binds to a central metal ion (e.g. Titanium) to create a coordination complex. One of its complexes, Permethyltitanocene-bis(trimethylsilyl)acetylene, is a catalyst for the head-to-tail dimerization of 1-alkynes (e.g. 3-Penten-1-yne [P227430]).
General Description
Bis(trimethylsilyl)acetylene (BTMSA) participates as nucleophile in Friedel-Crafts type acylations and alkylations. BTMSA undergoes rhodium catalyzed addition reaction with diarylacetylenes. It undergoes cycloaddition with 1,5-hexadiynes in the presence of CpCo(CO)2 (Cp=cyclopentadienyl) to form benzocyclobutenes. Structure of BTMSA was characterized by a centre of inversion present on triple bond (length=1.208(3)?). TiCl4-Et2AlCl catalyzed Diels-Alder reaction of BTMSA with norbornadiene has been reported.
Purification Methods
Dissolve it in pet ether and wash it with ice-cold dilute HCl. The pet ether extract is dried (MgSO4), evaporated and fractionated at 760mm. [Walton & Waugh J Organomet Chem 37 45 1972, Beilstein 4 IV 3950.]
Bis(trimethylsilyl)acetylene Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of2
Global( 287)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | sales@capotchem.com | China | 29797 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 15371 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21695 | 55 |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 | fandachem@gmail.com | China | 9352 | 55 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 | product@chemlin.com.cn | CHINA | 3012 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 32480 | 60 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
| Win-Win Chemical CO., Limited | 0086-577-64498589 | sales@win-winchemical.com | CHINA | 998 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 | sales@amoychem.com | China | 6387 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 | sales@chemdad.com | China | 39916 | 58 |
View Lastest Price from Bis(trimethylsilyl)acetylene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2022-10-01 | Bis(trimethylsilyl)acetylene
14630-40-1
|
US $0.00-0.00 / KG | 1KG | 98% | 1ton | Henan Aochuang Chemical Co.,Ltd. | |
 |
2021-07-13 | Bis(trimethylsilyl)acetylene
14630-40-1
|
US $15.00-10.00 / KG | 1KG | 99%+ HPLC | Monthly supply of 1 ton | Zhuozhou Wenxi import and Export Co., Ltd | |
 |
2021-07-10 | Bis(trimethylsilyl)acetylene
14630-40-1
|
US $15.00-10.00 / KG | 1KG | 99%+ HPLC | Monthly supply of 1 ton | Zhuozhou Wenxi import and Export Co., Ltd |
-
- Bis(trimethylsilyl)acetylene
14630-40-1
- US $0.00-0.00 / KG
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- Bis(trimethylsilyl)acetylene
14630-40-1
- US $15.00-10.00 / KG
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
-
- Bis(trimethylsilyl)acetylene
14630-40-1
- US $15.00-10.00 / KG
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
14630-40-1(Bis(trimethylsilyl)acetylene)Related Search:
Bis(trimethylsilyl)sulfate
BIS(TRIMETHYLSILYLMETHYL)AMINE
BIS(TRIMETHYLSILYLMETHYL)DICHLOROSILANE
BIS(PHENYLETHYNYL)DIMETHYLSILANE
1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
BIS(DIETHYLAMINO)DIMETHYLSILANE
bis(4-broMophenyl)-diphenyl-silane
bis(4-broMophenyl)diMethylsilane
BIS(TRICHLOROSILYLETHYL)BENZENE,TECH-95
BIS(METHYLDIETHOXYSILYLPROPYL)AMINE
1of4
BIS(TRIMETHYLSILYL)ACETYLENE
Bis(trimethylsilyl)acetylene 99%
TIMTEC-BB SBB008997
1,2-Bis(trimethylsilyl)acetylene
1,2-ethynediylbis[trimethyl-silan
1,2-ethynediylbis[trimethyl-Silane
2,5-Disilahex-3-yne, 2,2,5,5-tetramethyl-
Acetylene, bis(trimethylsilyl)-
Silane, 1,2-ethynediylbis*trimethyl-
Trimethyl[(trimethylsilyl)ethynyl]silane
Bis(trimethylsilyl)acetylene(BTMSA)
Bis(trimethylsilyl)acetylene,min.97%
5-Fluoro-2-methoxy-phenylamine
Bis(trimethylsilyl)acetylene, min. 97%
Bis(triMethylsilyl)acetylene, 99% 50GR
Ethynylbistrimethylsilanel
Bis(trimethylsilyl)acetylene,99%
Silane,1,1'-(1,2-ethynediyl)bis[1,1,1-triMethyl-
Bis(trimethylsilyl)acetylene >
Bis(trimethylsilyl)acetylene, 98%, for synthesis
TIANFU-CHEM Bis(trimethylsilyl)acetylene 14630-40-1
ICLA-002
BIS-(TRIMETHYLSILYL)ACETYLENE, 98%BIS-(TRIMETHYLSILYL)ACETYLENE, 98%BIS-(TRIMETHYLSILYL)ACETYLENE, 98%
BSTMA
BTMSA
1,2-BIS-TRIMETHYLSILANYL-ETHYNE
1,2-Bis(trimethylsilyl)ethyne
Bis(trimethylsilyl)ethyne
3-Metbis(Trimethylsilyl) Acetylene
Double (trimethylmethsilyl) acetylene
DK079
DK080
14630-40-1
C8H18Si2
CH33SiCCSiCH33
CH33SiC8801CSiCH33
Building Blocks
Alkynes
Organic Building Blocks
Internal
Ethynylsilanes
Si-(C)4 Compounds
Acetylenes
Functionalized Acetylenes
Silicon Compounds (for Synthesis)
Si (Classes of Silicon Compounds)
Alkynes
Building Blocks
Chemical Synthesis
Internal
Organic Building Blocks
organosilicon compounds
Industrial/Fine Chemicals
Acetylenes
Ethynylsilanes
Functionalized Acetylenes
Si (Classes of Silicon Compounds)
Si-(C)4 Compounds