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CAS No.: | 3069-21-4 |
---|---|
Name: | Dodecyltrimethoxysilane |
Article Data: | 6 |
Molecular Structure: | |
Formula: | C15H34O3Si |
Molecular Weight: | 290.519 |
Synonyms: | 1-(Trimethoxysilyl)dodecane;n-Dodecyltrimethoxysilane;Trimethoxydodecylsilane; |
EINECS: | 221-332-4 |
Density: | 0.877 g/cm3 |
Melting Point: | -40 °C |
Boiling Point: | 234.9 °C at 760 mmHg |
Flash Point: | 108.6 °C |
Appearance: | Colorless to yellowish transparent liquid |
Hazard Symbols: | R36/38:Irritating to eyes and skin.; |
Risk Codes: | 36/37/38 |
Safety: | 26-36/37/39 |
PSA: | 27.69000 |
LogP: | 4.78540 |
Conditions | Yield |
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In hexane at 20℃; for 120h; Etherification; | 79% |
Conditions | Yield |
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With silicon tetrafluoride In diethyl ether |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 83 percent / H2O; NaHCO3 / diethyl ether / 1 h / -10 - 10 °C 2: 79 percent / hexane / 120 h / 20 °C View Scheme |
Conditions | Yield |
---|---|
With bismuth(III) chloride at 0 - 20℃; Neat (no solvent); Inert atmosphere; | A Ca. 10 %Spectr. B Ca. 90 %Spectr. |
1-oxo-1-methyl-4-ethyl-4-hydroxymethyl-2,6-dioxa-1-phosphacyclohexane
dodecyltrimethoxysilane
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 130℃; for 8h; Temperature; Solvent; Inert atmosphere; | 97.6% |
1-oxo-1-methyl-4-ethyl-4-hydroxymethyl-2,6-dioxa-1-phosphacyclohexane
dodecyltrimethoxysilane
Conditions | Yield |
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With tributyl-amine In 1,1,2,2-tetrachloroethane at 65 - 140℃; for 14h; Concentration; Solvent; Reagent/catalyst; Temperature; Inert atmosphere; | 96.8% |
Conditions | Yield |
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With dimethyl sulfate In diethylene glycol dimethyl ether at 160℃; for 16h; Solvent; Reagent/catalyst; Temperature; Inert atmosphere; | 88.6% |
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide; sodium tetrahydroborate; ethyl bromide; tetraoctyl ammonium bromide In benzene-d6 at 20℃; for 24h; | 76% |
dodecyltrimethoxysilane
Conditions | Yield |
---|---|
With N,N,N,N,N,N-hexamethylphosphoric triamide; ethyl bromide; sodium borodeuteride; tetraoctyl ammonium bromide In benzene-d6 at 20℃; for 24h; | 70% |
core-shell fluoroacrylate copolymer latex; monomer(s): butyl acrylate; methyl methacrylate; 2,3,4,5,5,5-hexafluoro-2,4-bis(trifluoromethyl)pentyl methacrylate, content 30 wt%
dodecyltrimethoxysilane
silica-containing fluoroacrylate copolymer latex, tetraethoxysilane content 2.20 wt%; monomer(s): butyl acrylate; methyl methacrylate; 2,3,4,5,5,5-hexafluoro-2,4-bis(trifluoromethyl)pentyl methacrylate, content 30 wt%; dodecyltrimethoxysilane
Conditions | Yield |
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With hydrogenchloride; tetraethoxy orthosilicate at 75℃; |
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The CAS registry number of Silane,dodecyltrimethoxy- is 3069-21-4. Its EINECS registry number is 221-332-4. The systematic name is dodecyl(trimethoxy)silane. In addition, the molecular formula is C15H34O3Si and the molecular weight is 290.51. It is also called dodecyltrimethoxysilane. What's more, it is a kind of colorless to yellowish transparent liquid and belongs to the classes of Alkyl; Si (Classes of Silicon Compounds); Si-O Compounds; Trialkoxysilanes; Alkoxy Silanes; Hydrophobing Agents. And it should be stored in a cool and dry place.
Physical properties about this chemical are: (1)ACD/LogP: 5.98; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.98; (4)ACD/LogD (pH 7.4): 5.98; (5)ACD/BCF (pH 5.5): 20687.76; (6)ACD/BCF (pH 7.4): 20687.76; (7)ACD/KOC (pH 5.5): 42734.05; (8)ACD/KOC (pH 7.4): 42734.05; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 14; (12)Polar Surface Area: 27.69 Å2; (13)Index of Refraction: 1.429; (14)Molar Refractivity: 85.49 cm3; (15)Molar Volume: 330.9 cm3; (16)Polarizability: 33.89×10-24cm3; (17)Surface Tension: 25.9 dyne/cm; (18)Density: 0.877 g/cm3; (19)Flash Point: 108.6 °C; (20)Enthalpy of Vaporization: 45.25 kJ/mol; (21)Boiling Point: 234.9 °C at 760 mmHg; (22)Vapour Pressure: 0.0787 mmHg at 25°C.
Preparation of Silane,dodecyltrimethoxy-: This chemical can be prepared by methanol; potassium salt and trihydroxydodecylsilan. It is a kind of etherification reaction. The reaction will need reagent hexane. The reaction time is 5 days with temperature of 20°C, and the yield is about 79%.
When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. When you are using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: O(C)[Si](OC)(OC)CCCCCCCCCCCC
(2)InChI: InChI=1/C15H34O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-19(16-2,17-3)18-4/h5-15H2,1-4H3
(3)InChIKey: SCPWMSBAGXEGPW-UHFFFAOYAB