Bis(trimethylsiloxy)dichlorosilane

Base Information

• Chemical Name: Bis(trimethylsiloxy)dichlorosilane
• CAS No.: 2750-44-9
• Molecular Formula: C6H18Cl2O2Si3
• Molecular Weight: 277.37
• Hs Code.: 2934999090
• European Community (EC) Number: 689-676-1
• DSSTox Substance ID: DTXSID10373515
• Nikkaji Number: J1.313.943A
• Wikidata: Q82161729
• Mol file: 2750-44-9.mol

Synonyms:bis(trimethylsiloxy)dichlorosilane;2750-44-9;dichloro-bis(trimethylsilyloxy)silane;3,3-dichlorohexamethyltrisiloxane;BIS-(TRIMETHYLSILOXY)DICHLOROSILANE;3,3-Dichloro-1,1,1,5,5,5-hexamethyltrisiloxane;Trisiloxane, 3,3-dichloro-1,1,1,5,5,5-hexamethyl-;4,4-dichloro-2,2,6,6-tetramethyl-3,5-dioxa-2,4,6-trisilaheptane;SCHEMBL2199078;DTXSID10373515;YQPFMTIZDAWFAC-UHFFFAOYSA-N;BIS(TRIMETHYLSILYLOXY)DICHLOROSILANE

Chemical Property of Bis(trimethylsiloxy)dichlorosilane

Chemical Property:

• Vapor Pressure: 0.243mmHg at 25°C
• Melting Point: -53°C
• Refractive Index: 1.3983
• Boiling Point: 213.2 °C at 760 mmHg
• Flash Point: 70.1 °C
• PSA: 18.46000
• Density: 1.026 g/cm³
• LogP: 3.60260
• Storage Temp.: 2-8°C
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 4
• Exact Mass: 275.9991648
• Heavy Atom Count: 13
• Complexity: 156

Purity/Quality:

98%,99%, ^*data from raw suppliers

3,3-Dichloro-1,1,1,5,5,5-hexamethyltrisiloxane ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C
• Hazard Codes: C
• Statements: 10-34
• Safety Statements: 26-36/37/39-45

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C[Si](C)(C)O[Si](O[Si](C)(C)C)(Cl)Cl

Technology Process of Bis(trimethylsiloxy)dichlorosilane

There total 4 articles about Bis(trimethylsiloxy)dichlorosilane 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:

Hexamethyldisiloxane (107-46-0) → octamethylcyclotetrasiloxane (556-67-2) + bis-trimethylsiloxy-dichlorosilane (2750-44-9) + 1,1,1-trichloro-3,3,5,5,5-pentamethyltrisiloxane

Guidance literature:

With tetrachlorosilane; at 700 ℃; for 0.0166667h; Product distribution; dependence of the composition of the condensate on the residence time; on the reaction temperature (600-720 deg C); on the ratio of the starting materials at 675 deg C and τ=30 s;

DOI:10.1007/BF02502945

Reference yield:

Hexamethyldisiloxane (107-46-0) + 1,1,1-trichloro-3,3,3-trimethyl-disiloxane (2750-45-0) → chloro-trimethyl-silane (75-77-4) + tetramethylsilane (75-76-3) + octamethyltrisiloxabe (107-51-7) + bis-trimethylsiloxy-dichlorosilane (2750-44-9)

Guidance literature:

at 650 ℃; for 0.0111111h; Further byproducts given. Title compound not separated from byproducts;

DOI:10.1007/BF01431631

Reference yield:

Hexamethyldisiloxane (107-46-0) + 1,1,1-trichloro-3,3,3-trimethyl-disiloxane (2750-45-0) → tetramethylsilane (75-76-3) + 1-chloro-1,1,3,3,3-pentamethyldisiloxane (2943-62-6) + octamethyltrisiloxabe (107-51-7) + bis-trimethylsiloxy-dichlorosilane (2750-44-9) + 1,1,1-trimethyl-3,3,5,5,5-pentachlorotrisiloxane + 1,1,1-trichloro-3,3,5,5,5-pentamethyltrisiloxane

Guidance literature:

at 650 ℃; for 0.0111111h; Product distribution; pyrolysis;

DOI:10.1007/BF01431631

upstream raw materials:

Hexamethyldisiloxane

1,1,1-trichloro-3,3,3-trimethyl-disiloxane

Downstream raw materials:

Diphenoxy-bis-trimethylsilyloxy-silan

3,3-diethoxy-1,1,1,5,5,5-hexamethyltrisiloxane

Refernces

• 1、 Krasnova,Chernyshev,Sergeev. "1,1,1-Trimethyl-3,3,3-trichlorodisiloxane as a source and a trapping agent for silanones". . p. 1238 - 1239. Retrieved 2007/10/03.