1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane

Base Information

• Chemical Name: 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane
• CAS No.: 18420-09-2
• Molecular Formula: C8H22O3Si2
• Molecular Weight: 222.432
• Hs Code.: 29319090
• European Community (EC) Number: 242-298-7,805-683-6
• DSSTox Substance ID: DTXSID5066372
• Nikkaji Number: J266.167E
• Wikidata: Q81992971
• Mol file: 18420-09-2.mol

Synonyms:18420-09-2;1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane;1,1,3,3-Tetramethyl-1,3-diethoxydisiloxane;ethoxy-[ethoxy(dimethyl)silyl]oxy-dimethylsilane;70851-25-1;C8H22O3Si2;Disiloxane, 1,3-diethoxy-1,1,3,3-tetramethyl-;EINECS 242-298-7;METHOXY TERMINATED POLYDIMETHYLSILOXANE;4,4,6,6-tetramethyl-3,5,7-trioxa-4,6-disilanonane;SCHEMBL217139;DTXSID5066372;C8-H22-O3-Si2;Tetramethyl-1,3-diethoxy disiloxane;MFCD00053754;AKOS015915555;FS-5027;FT-0624759;1,1,3,3-tetramethyl-1,3-diethoxy disiloxane;1,3-diethoxy-1,1,3,3-tetramethyl-disiloxane;E78427;ethoxy-[ethoxy(dimethyl)silyl]oxy-dimethyl-silane;A812843;1,1,3,3-Tetramethyl-1,3-diethoxypropanedisiloxane;1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane, 97%

Chemical Property of 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane

Chemical Property:

• Appearance/Colour: WHITE TO OFF-WHITE POWDER
• Vapor Pressure: 1.06mmHg at 25°C
• Melting Point: -134 °C
• Refractive Index: n20/D 1.389(lit.)
• Boiling Point: 183.3 °C at 760 mmHg
• Flash Point: 53.6 °C
• PSA: 27.69000
• Density: 0.883 g/mL at 25 °C(lit.)
• LogP: 2.47960
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 6
• Exact Mass: 222.11074763
• Heavy Atom Count: 13
• Complexity: 132

Purity/Quality:

98% ^*data from raw suppliers

1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 10-36/37/38
• Safety Statements: 16-26-36

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: CCO[Si](C)(C)O[Si](C)(C)OCC
• Uses: 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane is used in preparation of symmetric Alkoxy-substituted Alkyldisiloxanes by alkoxy partial hydrolysis of alkoxysilanes, carbonization and condensation

Technology Process of 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane

There total 20 articles about 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxane which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 75.0%

sodiumoxydimethylethoxysilane (121954-25-4) → 1,3-diethoxy-1,1,3,3-tetramethyldisiloxane (18420-09-2)

Guidance literature:

With carbon dioxide; at 25 ℃; for 0.0833333h; Temperature; Autoclave; High pressure;

DOI:10.1039/c6ra19758b

Reference yield:

ethanol (64-17-5) + dimethylsilicon dichloride (75-78-5,30107-43-8) → chloroethane (75-00-3) + diethoxy dimethylsilane (78-62-6) + 1,3-diethoxy-1,1,3,3-tetramethyldisiloxane (18420-09-2)

Guidance literature:

at 55 ℃; anschliessendes kurzes Kochen;

Reference yield:

octamethylcyclotetrasiloxane (556-67-2) + 5,5-Dimethyl-2-ethoxy-1,3-dioxane (5783-79-9) → diethoxy dimethylsilane (78-62-6) + 1,3-diethoxy-1,1,3,3-tetramethyldisiloxane (18420-09-2) + 1,5-diethoxy-1,1,3,3,5,5-hexamethyl-trisiloxane (17928-13-1) + 2,2,4,4,7,7-Hexamethyl-[1,3,5,2,4]trioxadisilocane (122600-43-5) + C6H14O5Si2 (122600-44-6) + 2,2,5,5,8,8,11,11-Octamethyl-1,3,7,9-tetraoxa-2,8-disila-cyclododecane (120726-90-1)

Guidance literature:

With toluene-4-sulfonic acid; In n-heptane; at 20 - 30 ℃; for 0.5h; Product distribution; other 2-ethoxy-1,3-dioxanes, other reagents;

upstream raw materials:

diethoxy dimethylsilane

ethanol

dimethylsilicon dichloride

dimethyl chloro ethoxy silane

Downstream raw materials:

1,1,3,3-tetramethyl-5,5-diphenylcyclotrisiloxane

diethoxy dimethylsilane

dodecamethylpentasiloxane

ethoxy pentamethyldisiloxane

Refernces

• 1、 Temnikov,Cherkun,Boldyrev,Zimovets,Kononova,Elmanovich,Gallyamov,Muzafarov. "Interaction of organodialkoxysilanolates with carbon dioxide". . p. 105161 - 105165. Retrieved 2016/11/18.
• 2、 Zhurkina, I. P.,Nedogrei, E. P.,Musavirov, R. S.,Rakhmankulov, D. L.,Paushkin, Ya. M.. "REACTION OF OCTAMETHYLCYCLOTETRASILOXANE WITH 2-ETHOXY-1,3-DIOXANES". . p. 49 - 50. Retrieved 2007/10/02.