1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane

Base Information

• Chemical Name: 1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane
• CAS No.: 854228-14-1
• Molecular Formula: C₂₅H₃₆O₅Si₅
• Molecular Weight: 556.985
• Mol file: 854228-14-1.mol

Synonyms:1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane

Chemical Property of 1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane

There total 1 articles about 1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane 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: 74.0%

1,7-dihydroxy-1,1,5,5,7,7-hexamethyl-3,3-diphenylsiloxane (854228-12-9) + dichloromethylphenylsilane (149-74-6) → 1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane (854228-14-1)

Guidance literature:

With pyridine; In diethyl ether; at 20 ℃; for 16h;

DOI:10.1039/b500591d

Reference yield:

1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane (854228-14-1) → 1,5-dibromo-1-phenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane

Guidance literature:

With bromine; In tetrachloromethane; at 20 ℃; for 4h;

DOI:10.1039/b500591d

Reference yield:

1,1,5-triphenyl-3,3,5,7,7,9,9-heptamethyl-cyclopentasiloxane (854228-14-1) → 1,5,5-triphenyl-3,3,7,7,9,11,11,13,13,16,16-undecamethylbicyclo[7.5.3]octasiloxane

Guidance literature:

Multi-step reaction with 2 steps

1: Br₂ / CCl₄ / 4 h / 20 °C

2: pyridine / diethyl ether / 16 h / 20 °C

With pyridine; bromine; In tetrachloromethane; diethyl ether;

DOI:10.1039/b500591d

upstream raw materials:

1,7-dihydroxy-1,1,5,5,7,7-hexamethyl-3,3-diphenylsiloxane

dichloromethylphenylsilane