Basic Information | Post buying leads | Suppliers | Cas Database |
chloro-trimethyl-silane
Dichloromethylvinylsilane
A
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
B
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
C
1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane
D
1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-trivinylpentasiloxane
Conditions | Yield |
---|---|
With water In toluene at 20℃; for 27h; Further byproducts given; | A n/a B n/a C 26% D 10 % Chromat. |
With water In toluene at 20℃; for 27h; Further byproducts given; | A n/a B n/a C 26 % Chromat. D 10% |
chloro-trimethyl-silane
Dichloromethylvinylsilane
A
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
B
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
C
1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane
D
C18H42O5Si6
Conditions | Yield |
---|---|
With water In toluene at 20℃; for 27h; Further byproducts given; | A n/a B n/a C 26% D 6 % Chromat. |
Dichloromethylvinylsilane
A
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
B
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
Conditions | Yield |
---|---|
With water In toluene at 20℃; for 27h; | A 24% B 19 % Chromat. |
With water In toluene at 20℃; for 27h; | A 26 % Chromat. B 12% |
Conditions | Yield |
---|---|
With ethanol |
chloro-trimethyl-silane
Dichloromethylvinylsilane
A
methylbis(trimethylsilyloxy)vinylsilane
B
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
C
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
D
1,1,1,3,5,7,7,7-octamethyl-3,5-divinyltetrasiloxane
Conditions | Yield |
---|---|
With water In toluene at 20℃; for 27h; Further byproducts given. Yields of byproduct given; | A 31 % Chromat. B n/a C n/a D n/a |
Dichloromethylvinylsilane
A
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
B
2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane
C
2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane
D
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
Conditions | Yield |
---|---|
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Further byproducts given. Yields of byproduct given; | |
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Yields of byproduct given; |
Dichloromethylvinylsilane
A
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
B
2,4,6,8,10-pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane
C
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
Conditions | Yield |
---|---|
With tetrahydrofuran; lithium at 35 - 45℃; Product distribution; Mechanism; | |
With tetrahydrofuran; lithium at 35 - 45℃; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
Dichloromethylvinylsilane
A
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
B
2,4,6,8,10,12-hexamethyl-2,4,6,8,10,12-hexavinyl-cyclohexasiloxane
C
1,3,5-trimethyl-1,3,5-trivinyl-cyclotrisiloxane
D
2,4,6,8,10,12,14-Heptamethyl-2,4,6,8,10,12,14-heptavinyl-1,3,5,7,9,11,13-heptaoxa-2,4,6,8,10,12,14-heptasila-cyclotetradecane
Conditions | Yield |
---|---|
With hydrogenchloride In toluene at 20℃; for 4h; Yield given. Further byproducts given. Yields of byproduct given; |
methylvinyldiethoxysilane
A
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
Conditions | Yield |
---|---|
With hydrogenchloride |
Dichloromethylvinylsilane
Octamethyltrisiloxane
A
Hexamethyldisiloxane
B
2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-cyclotetrasiloxane
C
1,1,1,3,5,7,9,9,9-nonamethyl-3,5,7-trivinylpentasiloxane
Conditions | Yield |
---|---|
With dimethyl sulfoxide Heating; Further byproducts given. Title compound not separated from byproducts; |
The 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane, with the CAS registry number 2554-06-5, is also known as 1,3,5,7-Tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane. It belongs to the product categories of Si (Classes of Silicon Compounds); Siloxanes; Si-O Compounds; Silicone Monomers Organometallic Reagents; Monomers; Organosilicon. Its EINECS number is 219-863-1. This chemical's molecular formula is C12H24O4Si4 and molecular weight is 344.66. What's more, its systematic name is 2,4,6,8-Tetramethyl-2,4,6,8-tetravinyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane. Its classification code is Mutation data. This chemical should be sealed and stored in a cool and dry place.
Physical properties of 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane are: (1)#H bond acceptors: 4; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 4; (4)Polar Surface Area: 36.92 Å2; (5)Index of Refraction: 1.455; (6)Molar Refractivity: 96.626 cm3; (7)Molar Volume: 356.389 cm3; (8)Polarizability: 38.305×10-24cm3; (9)Surface Tension: 20.6 dyne/cm; (10)Density: 0.967 g/cm3; (11)Flash Point: 94.338 °C; (12)Enthalpy of Vaporization: 46.535 kJ/mol; (13)Boiling Point: 247.805 °C at 760 mmHg; (14)Vapour Pressure: 0.04 mmHg at 25°C.
Preparation: this chemical can be prepared by dichloro-methyl-vinyl-silane at the temperature of 20 °C. This reaction will need reagent H2O and solvent toluene with the reaction time of 27 hours. The yield is about 24%.
Uses of 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane: it can be used to produce 4-vinyl-benzoic acid ethyl ester at the temperature of 20 °C. It will need reagent TBAF and solvent tetrahydrofuran with the reaction time of 10 min. This reaction will also need catalyst Pd(dba)2. The yield is about 85%.
When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable protective clothing.
You can still convert the following datas into molecular structure:
(1)SMILES: O1[Si](O[Si](O[Si](O[Si]1(\C=C)C)(\C=C)C)(\C=C)C)(\C=C)C
(2)Std. InChI: InChI=1S/C12H24O4Si4/c1-9-17(5)13-18(6,10-2)15-20(8,12-4)16-19(7,11-3)14-17/h9-12H,1-4H2,5-8H3
(3)Std. InChIKey: VMAWODUEPLAHOE-UHFFFAOYSA-N
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
rat | LC | inhalation | > 1320mg/m3/4H (1320mg/m3) | National Technical Information Service. Vol. OTS0572745. | |
rat | LD50 | oral | > 15gm/kg (15000mg/kg) | National Technical Information Service. Vol. OTS0572732. |