syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane

Base Information

• Chemical Name: syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane
• CAS No.: 1276694-52-0
• Molecular Formula: C₅₂H₅₂O₁₀Si₈
• Molecular Weight: 1061.66
• Mol file: 1276694-52-0.mol

Synonyms:syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane

Chemical Property of syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane

There total 3 articles about syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane 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: 52.0%

cis,trans,cis-2,4,6,8-tetraisocyanato-2,4,6,8-tetramethylcyclotetrasiloxane + 1,1,3,3-tetraphenyldisiloxane-1,3-diol (1104-93-4) → syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane (1276694-52-0)

Guidance literature:

cis,trans,cis-2,4,6,8-tetraisocyanato-2,4,6,8-tetramethylcyclotetrasiloxane; With pyridine; In tetrahydrofuran; at 20 ℃; for 0.5h;

1,1,3,3-tetraphenyldisiloxane-1,3-diol; In tetrahydrofuran; at 20 ℃; for 6h;

DOI:10.1016/j.jorganchem.2010.10.013

Reference yield:

1,3-dichloro-1,1,3,3-tetraphenyldisiloxane (7756-87-8) → syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane (1276694-52-0)

Guidance literature:

Multi-step reaction with 2 steps

1.1: water; triethylamine / diethyl ether; acetone / 0 - 20 °C

2.1: pyridine / tetrahydrofuran / 0.5 h / 20 °C

2.2: 6 h / 20 °C

With pyridine; water; triethylamine; In tetrahydrofuran; diethyl ether; acetone;

DOI:10.1016/j.jorganchem.2010.10.013

Reference yield:

diphenylsilyl dichloride (80-10-4) → syn-1,3,9,11-tetramethyl-5,5,7,7,13,13,15,15-octaphenyltricyclo[9.5.1.1(3,9)]octasiloxane (1276694-52-0)

Guidance literature:

Multi-step reaction with 3 steps

1.1: water / tetrahydrofuran / 3 h / Reflux

2.1: water; triethylamine / diethyl ether; acetone / 0 - 20 °C

3.1: pyridine / tetrahydrofuran / 0.5 h / 20 °C

3.2: 6 h / 20 °C

With pyridine; water; triethylamine; In tetrahydrofuran; diethyl ether; acetone;

DOI:10.1016/j.jorganchem.2010.10.013

upstream raw materials:

1,1,3,3-tetraphenyldisiloxane-1,3-diol

1,3-dichloro-1,1,3,3-tetraphenyldisiloxane

diphenylsilyl dichloride

Refernces