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CAS No.: | 7418-20-4 |
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Name: | 2,2,5,5-TETRAMETHYL-2,5-DISILA-1-OXACYCLOPENTANE |
Article Data: | 8 |
Molecular Structure: | |
Formula: | C6H16OSi2 |
Molecular Weight: | 160.363 |
Synonyms: | 1,1,3,3-Tetramethyl-2-oxa-1,3-disilacyclopentane;2,2,5,5-Tetramethyl-1-oxa-2,5-disilacyclopentane;2,2,5,5-Tetramethyl-2,5-disila-1-oxacyclopentane; |
EINECS: | 231-037-2 |
Density: | 0.85 g/cm3 |
Melting Point: | <0 °C |
Boiling Point: | 123.7 °C at 760 mmHg |
Flash Point: | 17.7 °C |
Risk Codes: | 11 |
Safety: | 9-16-33 |
Transport Information: | 1993 |
PSA: | 9.23000 |
LogP: | 2.42680 |
1,1,2,2-tetramethyl-1,2-disilacyclobutane
2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane
Conditions | Yield |
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With oxygen | 67% |
2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane
Conditions | Yield |
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With triphenylphosphine In Petroleum ether at 20℃; | 57% |
With triphenylphosphine In Petroleum ether at 20℃; | 57% |
2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane
Conditions | Yield |
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With potassium hydroxide at 250℃; | 57% |
1,2-bis-(chlorodimethylsilyl)ethane
A
2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane
Conditions | Yield |
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With dihydrogen peroxide |
1,2-bis-(chlorodimethylsilyl)ethane
2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane
Conditions | Yield |
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Multi-step reaction with 2 steps 1: K/Na vapor / 280 - 300 °C / 0.1 - 1 Torr 2: 67 percent / O2 View Scheme | |
Multi-step reaction with 2 steps 1: H2O2 2: 57 percent / triphenylphosphine / petroleum ether / 20 °C View Scheme |
tetramethyl-1,6,2,5-diazadisila-[6]ferrocenophane
2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane
Conditions | Yield |
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Fe-compound decompose by the effect of moisture; |
1-amino-1'-(2,2,5,5-tetramethyl-1-aza-2,5-disilacyclopent-1-yl)ferrocene
2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane
Conditions | Yield |
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Fe-compound decompose by the effect of moisture; |
2,2,5,5-tetramethyl-2,5-disila-1-oxacyclopentane
Conditions | Yield |
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With carbon dioxide In pentane at 25℃; under 3863.02 Torr; for 1h; Inert atmosphere; |
Conditions | Yield |
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(μ3,η2:η3:η5-acenaphthalene)Ru3(CO)7 In 1,4-dioxane at 20℃; for 0.5h; | 100% |
Conditions | Yield |
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(μ3,η2:η3:η5-acenaphthalene)Ru3(CO)7 In benzene-d6 at 40℃; for 12h; Product distribution; Further Variations:; Reaction partners; Pressures; Solvents; Catalysts; monomer, monomer/silane ratios, temperatures, reaction times; | 100% |
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This chemical is called 1-Oxa-2,5-disilacyclopentane,2,2,5,5-tetramethyl-, and its systematic name is 2,2,5,5-tetramethyl-1,2,5-oxadisilolane. With the molecular formula of C6H16OSi2, its molecular weight is 160.36. The CAS registry number of this chemical is 7418-20-4.
Other characteristics of the 1-Oxa-2,5-disilacyclopentane,2,2,5,5-tetramethyl- can be summarised as followings: (1)ACD/LogP: 3.99; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.99; (4)ACD/LogD (pH 7.4): 3.99; (5)ACD/BCF (pH 5.5): 633.6; (6)ACD/BCF (pH 7.4): 633.6; (7)ACD/KOC (pH 5.5): 3524.87; (8)ACD/KOC (pH 7.4): 3524.87; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 9.23 Å2; (13)Index of Refraction: 1.417; (14)Molar Refractivity: 47.02 cm3; (15)Molar Volume: 186.8 cm3; (16)Polarizability: 18.64×10-24cm3; (17)Surface Tension: 17.3 dyne/cm; (18)Density: 0.85 g/cm3; (19)Flash Point: 17.7 °C; (20)Enthalpy of Vaporization: 34.67 kJ/mol; (21)Boiling Point: 123.7 °C at 760 mmHg; (22)Vapour Pressure: 15.9 mmHg at 25°C.
Production method of this chemical: The 1-Oxa-2,5-disilacyclopentane,2,2,5,5-tetramethyl- could be obtained by the reactant of 1,1,4,4-Tetramethyl-2,3-dioxa-1,4-disilacyclohexane. This reaction needs the reagent of triphenylphosφne, and the solvent of petroleum ether. The yield is 57 %. In addition, this reaction should be taken at the temperature of 20 °C.
Uses of this chemical: The 1-Oxa-2,5-disilacyclopentane,2,2,5,5-tetramethyl- could react with dibenzo-1,3-disila-2-thiacycloheptadiene, and obtain the silafluorene and 2,2,4,4,7,7-hexamethyl-[1,3,2,4,7]oxathiatrisilepane. This reaction needs the solvent of benzene. The yield is 44 %. In addition, this reaction should be taken for 5 hours. The other condition is irradiation.
When you are using this chemical, please be cautious about it as the following: This chemical is highly flammable. Keep container in a well-ventilated place. Keep it away from sources of ignition. Take precautionary measures against static discharges.
You can still convert the following datas into molecular structure:
1.SMILES: O1[Si](C)(C)CC[Si]1(C)C
2.InChI: InChI=1/C6H16OSi2/c1-8(2)5-6-9(3,4)7-8/h5-6H2,1-4H3
3.InChIKey: ZJWXCSUSULCHCK-UHFFFAOYAW