1,15-Dihydroxy hexadecamethyl octasiloxane

Base Information

• Chemical Name: 1,15-Dihydroxy hexadecamethyl octasiloxane
• CAS No.: 4938-87-8
• Molecular Formula: C16H50O9Si8
• Molecular Weight: 611.252
• Mol file: 4938-87-8.mol

Synonyms:1,15-Octasiloxanediol,1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl;1,15-DIHYDROXY HEXADECAMETHYL OCTASILOXANE;

Chemical Property of 1,15-Dihydroxy hexadecamethyl octasiloxane

Chemical Property:

• PSA: 105.07000
• LogP: 4.70160

Purity/Quality:

99%min ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 1,15-Dihydroxyhexadecamethyloctasiloxane is sed in the preparation of discrete dimethylsiloxane oligomers.

Technology Process of 1,15-Dihydroxy hexadecamethyl octasiloxane

There total 2 articles about 1,15-Dihydroxy hexadecamethyl 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: 97.0%

octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl (19095-24-0) → 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyloctasiloxane-1,15-diol (4938-87-8)

Guidance literature:

With palladium 10% on activated carbon; In 1,4-dioxane; at 0 ℃; for 4.66667h; pH=7; Inert atmosphere;

DOI:10.1021/jacs.6b00629

Reference yield:

dodecamethylcyclohexasilane (4098-30-0) → tetradecamethylcycloheptasiloxane (107-50-6) + hexadecamethylcyclooctasiloxane (556-68-3) + octadecamethyl-cyclononasiloxane (556-71-8) + Hexamethylcyclotrisiloxane (541-05-9) + octamethylcyclotetrasiloxane (556-67-2) + decamethylcyclopentasiloxane (541-02-6) + dodecamethyl-cyclohexasiloxane (540-97-6) + 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyloctasiloxane-1,15-diol (4938-87-8) + 1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane-1,11-diol (4029-00-9) + C30H92O16Si15 + eicosamethylcyclodecasiloxane (18772-36-6) + tetracosamethyl cyclododecasiloxane (18919-94-3) + Tricontamethylcyclopentadecasiloxan (23523-14-0) + α,ω-Dihydroxy-tetradecamethyl-heptasiloxan (3195-63-9) + Docosamethylcycloundecasiloxane (18766-38-6) + α,ω-Dihydroxy-polydimethylsiloxan + hexacosamethyl-cyclotridecasiloxane (23732-94-7) + Octacosamethylcyclotetradeca-siloxane (149050-40-8) + α,ω-Dihydroxy-octadecamethyl-nonasiloxan (18678-58-5) + 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15,17,17,19,19,21,21,23,23,25,25,27,27,29,29,31,31-dotriacontamethylhexadecasiloxane-1,31-diol + Dotriacontamethylcyclohexadecasiloxane + tetratriacontamethylcycloheptadecasiloxane + C22H68O12Si11 + C24H74O13Si12 + C34H104O18Si17 + permethyldecasiloxane-1,19-diol + C28H86O15Si14

Guidance literature:

dodecamethylcyclohexasilane; With potassium tert-butylate; In tetrahydrofuran; at 20 ℃; for 0.5h; Inert atmosphere; Schlenk technique;

With hydrogen; C₆₂H₅₁N₂Ni₂^(1-)*K⁽¹⁺⁾*2C₄H₁₀O₂; In tetrahydrofuran; at 45 ℃; for 24h; under 1500.15 Torr; Schlenk technique;

With water; In tetrahydrofuran; at -40 - 20 ℃; for 12h; Schlenk technique;

DOI:10.1002/anie.201907525

Reference yield:

1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyloctasiloxane-1,15-diol (4938-87-8) + 2-Chloro-4,4,6,6,8,8-hexamethyl-2-phenyl-[1,3,5,7,2,4,6,8]tetroxatetrasilocane (17216-94-3) → C40H94O17Si16 (72325-67-8)

Guidance literature:

With triethylamine; In diethyl ether;

DOI:10.1007/BF00950997

upstream raw materials:

octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl

dodecamethylcyclohexasilane

Downstream raw materials:

C₄₀H₉₄O₁₇Si₁₆

Refernces

• 1、 Van Genabeek, Bas,De Waal, Bas F. M.,Gosens, Mark M. J.,Pitet, Louis M.,Palmans, Anja R. A.,Meijer. "Synthesis and Self-Assembly of Discrete Dimethylsiloxane-Lactic Acid Diblock Co-oligomers: The Dononacontamer and Its Shorter Homologues". supporting information. p. 4210 - 4218. Retrieved 2016/05/02.