α.ω-Bis--dekamethylpentasiloxan

Base Information

• Chemical Name: α.ω-Bis--dekamethylpentasiloxan
• CAS No.: 18138-53-9
• Molecular Formula: C₁₂H₃₄Cl₂O₄Si₅
• Molecular Weight: 453.733
• Mol file: 18138-53-9.mol

Synonyms:

Chemical Property of α.ω-Bis--dekamethylpentasiloxan

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of α.ω-Bis--dekamethylpentasiloxan

There total 3 articles about α.ω-Bis--dekamethylpentasiloxan 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:

Chloro(chloromethyl)dimethylsilane (1719-57-9) + Hexamethylcyclotrisiloxane (541-05-9) → Hexamethyl-1,5-bis-chlormethyl-trisiloxan (18291-30-0,158465-60-2) + α.ω-Bis--oktamethyltetrasiloxan (17988-80-6,158465-60-2) + α.ω-Bis--dekamethylpentasiloxan (18138-53-9,158465-60-2) + 1,11-bis-chloromethyl-1,1,3,3,5,5,7,7,9,9,11,11-dodecamethyl-hexasiloxane (17909-28-3,158465-60-2)

Guidance literature:

With H₂O; In ethanol; water; boiling of ((CH3)2SiO)3 and (CH3)2(CH2Cl)SiCl (1.24:1.24 mol) in aq. alc. for 2 h;; washing of the soln. with H2O; drying over CaCl2; distn.;;

DOI:10.1021/ja01169a069

Reference yield:

Chloro(chloromethyl)dimethylsilane (1719-57-9) + Hexamethylcyclotrisiloxane (541-05-9) → α.ω-Bis--dekamethylpentasiloxan (18138-53-9,158465-60-2)

Guidance literature:

With ethanol; weitere Nebenprod_.: 1.1.3.3.5.5.7.7-Octamethyl-1.7-bis-chlormethyl-tetrasiloxan und 1.1.3.3.5.5.7.7.9.9.11.11-Dodecamethyl-1.11-bis-chlormethyl-hexasiloxan;

DOI:10.1021/ja01169a069

Reference yield:

Chloro(chloromethyl)dimethylsilane (1719-57-9) + 1,5-dichlorohexamethyltrisiloxane (3582-71-6) → α.ω-Bis--dekamethylpentasiloxan (18138-53-9,158465-60-2)

Guidance literature:

Multistep reaction; (i) aq. NaOH, Et₂O, (ii) /BRN= 1731933/, Py;

upstream raw materials:

Chloro(chloromethyl)dimethylsilane

1,5-dichlorohexamethyltrisiloxane

Hexamethylcyclotrisiloxane