tetrakis(dimethylsiloxy)octaphenylsilsesquioxane

Base Information

• Chemical Name: tetrakis(dimethylsiloxy)octaphenylsilsesquioxane
• CAS No.: 674298-98-7
• Molecular Formula: C₅₆H₆₈O₁₄Si₁₂
• Molecular Weight: 1302.17
• Mol file: 674298-98-7.mol

Synonyms:tetrakis(dimethylsiloxy)octaphenylsilsesquioxane

Chemical Property of tetrakis(dimethylsiloxy)octaphenylsilsesquioxane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of tetrakis(dimethylsiloxy)octaphenylsilsesquioxane

There total 4 articles about tetrakis(dimethylsiloxy)octaphenylsilsesquioxane 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: 98.0%

3,9,14,17-tetrahydroxy-1,3,5,7,9,11,14,16-octaphenyltricyclo[7.3.37,10]octasilsesquioxane (779321-27-6) + 1,1,3,3-tetramethyldisilazane (15933-59-2) → tetrakis(dimethylsiloxy)octaphenylsilsesquioxane (674298-98-7)

Guidance literature:

With bismuth(lll) trifluoromethanesulfonate; In tetrahydrofuran; toluene; at 20 ℃; for 1h;

DOI:10.1002/cssc.201802757

Reference yield: 96.0%

3,9,14,17-tetrahydroxy-1,3,5,7,9,11,14,16-octaphenyltricyclo[7.3.37,10]octasilsesquioxane (779321-27-6) + methallyl-dimethyl-silane (18163-05-8) → tetrakis(dimethylsiloxy)octaphenylsilsesquioxane (674298-98-7)

Guidance literature:

With scandium tris(trifluoromethanesulfonate); In tetrahydrofuran; acetonitrile; at 20 ℃; for 2h; chemoselective reaction;

DOI:10.1021/acs.inorgchem.7b01504

Reference yield: 89.0%

3,9,14,17-tetrahydroxy-1,3,5,7,9,11,14,16-octaphenyltricyclo[7.3.37,10]octasilsesquioxane (779321-27-6) + dimethylmonochlorosilane (1066-35-9) → tetrakis(dimethylsiloxy)octaphenylsilsesquioxane (674298-98-7)

Guidance literature:

With triethylamine; In tetrahydrofuran; at 20 ℃; for 24h; Schlenk technique; Inert atmosphere; Cooling with ice;

DOI:10.1039/c7cc03958a

upstream raw materials:

dimethylmonochlorosilane

3,9,14,17-tetrahydroxy-1,3,5,7,9,11,14,16-octaphenyltricyclo[7.3.3^7,10]octasilsesquioxane

methallyl-dimethyl-silane

1,1,3,3-tetramethyldisilazane

Refernces

• 1、 Kuciński, Krzysztof,Hreczycho, Grzegorz. "A Highly Effective Route to Si?O?Si Moieties through O-Silylation of Silanols and Polyhedral Oligomeric Silsesquioxane Silanols with Disilazanes". . p. 1043 - 1048. Retrieved 2019/02/05.
• 2、 -. "Silsesquioxane derivative and process for producing the same". Page/Page column 12. . Retrieved 2008/06/13.