- Cyclotrisiloxane,2,4,6-triethenyl-2,4,6-trimethyl-
- Cyclotrisiloxane,2,4,6-trimethyl-2,4,6-triphenyl-
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Cas Database |
| Name |
Cyclotrisiloxane,2,4,6-trimethyl-2,4,6-triphenyl- |
EINECS | 208-900-7 |
| CAS No. | 546-45-2 | Density | 1.102 g/mL at 20 °C(lit.) |
| PSA | 27.69000 | LogP | 2.98740 |
| Solubility | N/A | Melting Point |
100°C |
| Formula | C21H24O3Si3 | Boiling Point | 402.3 °C at 760 mmHg |
| Molecular Weight | 408.676 | Flash Point | 163.2 °C |
| Transport Information | N/A | Appearance | N/A |
| Safety | 24/25-36/37/39 | Risk Codes | 20/21/22 |
| Molecular Structure |
|
Hazard Symbols | N/A |
| Synonyms |
LS 8490;Phenylmethylsiloxane cyclic trimer;Trimethyltriphenylcyclotrisiloxane; |
Article Data | 15 |
Cyclotrisiloxane,2,4,6-trimethyl-2,4,6-triphenyl- Synthetic route
- 149-74-6
dichloromethylphenylsilane
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
B
- 77-63-4
2,4,6,8-tetraphenyl-2,4,6,8-tetramethylcyclotetrasiloxane
| Conditions | Yield |
|---|---|
| With pyridine; sodium hydrogencarbonate In acetone at 20℃; for 3h; | A 33% B 65.5% |
| 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; |
- 149-74-6
dichloromethylphenylsilane
A
- 34239-75-3
2.4.6.8.10-Pentamethyl-2.4.6.8.10-pentaphenyl-cyclopentasiloxan
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
C
- 77-63-4
2,4,6,8-tetraphenyl-2,4,6,8-tetramethylcyclotetrasiloxane
D
- 15331-54-1
cis-trans-cis-2,4,6,8-tetraphenyl-2,4,6,8-tetramethylcyclotetrasiloxane
| Conditions | Yield |
|---|---|
| With water In tetrahydrofuran for 10h; Heating; | A n/a B n/a C n/a D 11% |
| Conditions | Yield |
|---|---|
| (i) (hydrolysis), (ii) H2SO4, toluene; Multistep reaction; |
- 766-08-5
methylphenylsilane
A
- 6689-22-1
bis(phenyl methyl hydrido)disiloxane
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
C
- 7110-06-7, 147377-21-7, 147377-32-0
methylphenylsiloxane
D
- 142684-18-2
C14H18O2Si2
| Conditions | Yield |
|---|---|
| With water for 2h; Ambient temperature; Further byproducts given; | A 19 % Chromat. B 32 % Chromat. C 2.3 % Chromat. D 17 % Chromat. |
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
B
- 77-63-4
2,4,6,8-tetraphenyl-2,4,6,8-tetramethylcyclotetrasiloxane
C
- 75-65-0
tert-butyl alcohol
| Conditions | Yield |
|---|---|
| In nonane at 160℃; Rate constant; Kinetics; Thermodynamic data; ΔE(excit.); |
- 70996-44-0
(2-phenylpropan-2-ylperoxy)methyl(phenyl)silane
A
- 617-94-7
1-methyl-1-phenylethyl alcohol
B
- 6689-22-1
bis(phenyl methyl hydrido)disiloxane
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
D
- 4543-12-8
poly(methylphenylsiloxane)
| Conditions | Yield |
|---|---|
| In nonane at 160℃; Rate constant; Kinetics; Thermodynamic data; ΔE(excit.); |
- 149-74-6
dichloromethylphenylsilane
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
B
- 3424-57-5
cis-1,3,5-trimethyl-1,3,5-triphenylcyclorisiloxane
C
- 77-63-4
2,4,6,8-tetraphenyl-2,4,6,8-tetramethylcyclotetrasiloxane
| Conditions | Yield |
|---|---|
| With H2O In diethyl ether; water addn. of H2O to a soln. of (CH3)(C6H5)SiCl2 in ether;; |
- 149-74-6
dichloromethylphenylsilane
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
B
- 3424-57-5
cis-1,3,5-trimethyl-1,3,5-triphenylcyclorisiloxane
| Conditions | Yield |
|---|---|
| With H2O In water pouring (CH3)(C6H5)SiCl2 into icewater under vigorous stirring;; distn. at 2 torr; recrystn. from alc.;; |
- 4472-41-7
d7-N,N-dimethylformamide
- 766-08-5
methylphenylsilane
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
B
- 150730-19-1
trimethylamine-d7
| Conditions | Yield |
|---|---|
| With Pt(0) nanoparticles immobilized on a monolithic polymeric support at 20℃; Catalytic behavior; |
- 766-08-5
methylphenylsilane
- 25015-63-8
4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
- 546-45-2
1,3,5-triphenyl-1,3,5-trimethylcyclotrisiloxane
| Conditions | Yield |
|---|---|
| With basolite C300; water In acetonitrile at 70℃; for 7h; Inert atmosphere; |
Cyclotrisiloxane,2,4,6-trimethyl-2,4,6-triphenyl- Specification
The Cyclotrisiloxane,2,4,6-trimethyl-2,4,6-triphenyl-, with the CAS registry number 546-45-2, is also known as cis-2,4,6-Trimethyl-2,4,6-triphenylcyclotrisiloxane. Its EINECS registry number is 208-900-7. This chemical's molecular formula is C21H24O3Si3 and molecular weight is 408.66996. Its IUPAC name is called 2,4,6-trimethyl-2,4,6-triphenyl-1,3,5,2,4,6-trioxatrisilinane.
Physical properties of Cyclotrisiloxane,2,4,6-trimethyl-2,4,6-triphenyl-: (1)#H bond acceptors: 3; (2)#Freely Rotating Bonds: 3; (3)Index of Refraction: 1.568; (4)Molar Refractivity: 119.51 cm3; (5)Molar Volume: 365 cm3; (6)Surface Tension: 34.2 dyne/cm; (7)Density: 1.11 g/cm3; (8)Flash Point: 163.2 °C; (9)Enthalpy of Vaporization: 62.8 kJ/mol; (10)Boiling Point: 402.3 °C at 760 mmHg; (11)Vapour Pressure: 2.58E-06 mmHg at 25°C.
Uses of Cyclotrisiloxane,2,4,6-trimethyl-2,4,6-triphenyl-: it can be used to produce 1-biphenyl-4-yl-ethanone at temperature of 60 °C. This reaction will need reagent Ag2O and solvent tetrahydrofuran with reaction time of hours. The yield is about 55%.
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When you are using this chemical, please be cautious about it as the following:
This chemical is harmful by inhalation, in contact with skin and if swallowed. You should avoid contacting it with skin and eyes. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection.
You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C[Si]1(O[Si](O[Si](O1)(C)C2=CC=CC=C2)(C)C3=CC=CC=C3)C4=CC=CC=C4
(2)InChI: InChI=1S/C21H24O3Si3/c1-25(19-13-7-4-8-14-19)22-26(2,20-15-9-5-10-16-20)24-27(3,23-25)21-17-11-6-12-18-21/h4-18H,1-3H3
(3)InChIKey: HAURRGANAANPSQ-UHFFFAOYSA-N
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