ChemicalBook > CAS DataBase List > 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
- Product Name
- 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
- CAS No.
- 2554-06-5
- Chemical Name
- 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane
- Synonyms
- 2,4,6,8-TETRAMETHYL-2,4,6,8-TETRAVINYLCYCLOTETRASILOXANE;Tetravinyltetramethylcyclotetrasiloxane;D'4;DK706;2,4,6,8-TETRAM;Vinyl ring body;Vinylmethylcyclosiloxane;METHYLVINYLCYCLOSILOXANE;Methyl tetravinyl cyclotetrasiloxane;tetravinyl-tetramethylcyclo-tetrasiloxane
- CBNumber
- CB9446902
- Molecular Formula
- C12H24O4Si4
- Formula Weight
- 344.66
- MOL File
- 2554-06-5.mol
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2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Property
- Melting point:
- −44 °C (dec.)(lit.)
- Boiling point:
- 111-112 °C10 mm Hg(lit.)
- Density
- 0.997 g/mL at 25 °C(lit.)
- vapor pressure
- 93.5Pa at 25℃
- refractive index
- n20/D 1.435
- Flash point:
- 210 °F
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- solubility
- Miscible with most organic solvents.
- form
- liquid
- Specific Gravity
- 0.998
- color
- Colorless to Almost colorless
- Water Solubility
- 7μg/L at 23℃
- Hydrolytic Sensitivity
- 4: no reaction with water under neutral conditions
- BRN
- 1807272
- LogP
- 6.47
- CAS DataBase Reference
- 2554-06-5(CAS DataBase Reference)
- NIST Chemistry Reference
- 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane(2554-06-5)
- EPA Substance Registry System
- Cyclotetrasiloxane, 2,4,6,8-tetraethenyl-2,4,6,8-tetramethyl- (2554-06-5)
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 396281
- Product name
- 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane
- Packaging
- 10ml
- Price
- $46
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 396281
- Product name
- 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane
- Packaging
- 50ml
- Price
- $131
- Updated
- 2024/03/01
TCI Chemical
- Product number
- T2523
- Product name
- 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane
- Purity
- >97.0%(GC)
- Packaging
- 5g
- Price
- $16
- Updated
- 2024/03/01
TCI Chemical
- Product number
- T2523
- Product name
- 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane
- Purity
- >97.0%(GC)
- Packaging
- 25g
- Price
- $35
- Updated
- 2024/03/01
Alfa Aesar
- Product number
- L16645
- Product name
- 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane, 97%
- Packaging
- 50g
- Price
- $78.4
- Updated
- 2024/03/01
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2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Chemical Properties,Usage,Production
Chemical Properties
Colorless transparent liquid
Physical properties
bp 224–224.5 °C.
Uses
2,4,6,8-Tetraethenyl-2,4,6,8-tetramethylcyclotetrasiloxane (1) (D4V) and the trimer, 2,4,6-triethenyl-2,4,6- trimethylcyclotrisiloxane (2) (D3V) are the two commercially available cyclic polyvinylmethylsiloxanes. D4 V is used as a vinyl donor in the palladium-catalyzed vinylation of aryl halides and as a building block in polymer chemistry and dendrimer synthesis. The palladium-catalyzed vinylation of substituted aryl halides using D4 V is a general and mild method for the preparation of a variety of substituted styrenes or dienes.It is widely used as reagent for the vinylation of aryl halides and building block for carbosilane dendrimers.
Uses
2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane is used as an intermediate in organic synthesis. It is used in the preparation of 4-vinyl-benzoic acid ethyl ester. Further, it is used to prepare styrene derivatives by cross-coupling with aryl bromide in the presence of palladium catalyst.
General Description
In the presence of a Pd catalyst, this reagent cross-couples with aryl bromides to give styrene derivatives.
Hazard
Low toxicity by ingestion and inhalation.
Flammability and Explosibility
Non flammable
Purification Methods
A 7mL sample can be distilled in a small Vigreux column (p 11) at atmospheric pressure without polymerisation or decomposition. It is soluble in cyclohexane. [Kantor et al. J Am Chem Soc 77 1685 1955, Beilstein 4 IV 4184.]
2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Preparation Products And Raw materials
Raw materials
Preparation Products
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2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Suppliers
- Tel
- --
- Fax
- --
- Country
- Singapore
- ProdList
- 2215
- Advantage
- 39
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View Lastest Price from 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane manufacturers
Hubei Changfu Chemical Co., Ltd.
- Product
- 2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane 2554-06-5
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 98
- Supply Ability
- 20 tons
- Release date
- 2024-03-13
Shandong Deshang Chemical Co., Ltd.
- Product
- Tetramethyltetravinylcyclotetrasiloxane 2554-06-5
- Price
- US $9.00-4.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 10 tons
- Release date
- 2024-08-28
Wuhan KEMI-WORKS Chemical Co., Ltd.
- Product
- 1,3,5,7-Tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane VMC 2554-06-5
- Price
- US $1.00/Kg/Drum
- Min. Order
- 1KG
- Purity
- 98.0%min
- Supply Ability
- 50mt per month
- Release date
- 2021-09-18
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