1,3-Di(p-tolyl)-1,1,3,3-tetramethyldisiloxane, 97%

Base Information

• Chemical Name: 1,3-Di(p-tolyl)-1,1,3,3-tetramethyldisiloxane, 97%
• CAS No.: 18055-70-4
• Molecular Formula: C18H26 O Si2
• Molecular Weight: 314.575
• Hs Code.: 2934999090
• Mol file: 18055-70-4.mol

Synonyms:Disiloxane,1,1,3,3-tetramethyl-1,3-di-p-tolyl- (8CI);1,1,3,3-Tetramethyl-1,3-di-p-tolyldisiloxane; 1,3-Bis(4-methylphenyl)-1,1,3,3-tetramethyldisiloxane;1,3-Bis(p-tolyl)-1,1,3,3-tetramethyldisiloxane;1,3-Bis(p-tolyl)tetramethyldisiloxane

Chemical Property of 1,3-Di(p-tolyl)-1,1,3,3-tetramethyldisiloxane, 97%

Chemical Property:

• PSA: 9.23000
• LogP: 3.84440
• Water Solubility.: Not miscible or difficult to mix with water.

Purity/Quality:

98%Min ^*data from raw suppliers

1,3-DI(PARA-TOLYL)-1,1,3,3-TETRAMETHYLDISILOXANE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: It is employed as a intermediates for pharmaceutical.

Technology Process of 1,3-Di(p-tolyl)-1,1,3,3-tetramethyldisiloxane, 97%

There total 15 articles about 1,3-Di(p-tolyl)-1,1,3,3-tetramethyldisiloxane, 97% 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: 99.0%

dimethyl-p-tolylsilane (1432-39-9) → 1,3-bis(4′-tolyl)-1,1,3,3-tetramethyldisiloxane (18055-70-4)

Guidance literature:

With water; at 20 ℃; for 3h; Inert atmosphere;

DOI:10.1021/acs.joc.6b00556

Reference yield: 96.0%

1,1,3,3-tetramethyl-1,3-dichlorodisiloxane (2401-73-2) + para-bromotoluene (106-38-7) → 1,3-bis(4′-tolyl)-1,1,3,3-tetramethyldisiloxane (18055-70-4)

Guidance literature:

para-bromotoluene; With n-butyllithium; In tetrahydrofuran; hexane; at -78 ℃; for 0.5h; Inert atmosphere;

1,1,3,3-tetramethyl-1,3-dichlorodisiloxane; In tetrahydrofuran; hexane; at -78 - 20 ℃; Inert atmosphere;

DOI:10.1002/chem.201102285

Reference yield: 92.0%

ethoxy(dimethyl)(p-tolyl)silane (17988-22-6) → 1,3-bis(4′-tolyl)-1,1,3,3-tetramethyldisiloxane (18055-70-4)

Guidance literature:

With acetic acid; In toluene; at 120 ℃; for 12h;

DOI:10.1016/j.jorganchem.2018.03.006

upstream raw materials:

chlorodimethyl(4-methylphenyl)silane

n-butyllithium

bis(trimethylsilyl)dichloromethane

(p-Methoxy-phenyl)-dimethyl-fluor-silan

Downstream raw materials:

4-(3-pyridyl)toluene

4,4'-(1,1,3,3-tetramethyldisiloxane-1,3-diyl)dibenzoic acid

{me2(ph-4-COOme)Si}2O

chlorodimethyl(4-methylphenyl)silane

Refernces

• 1、 Lv, Haiping,Laishram, Ronibala Devi,Li, Jiayan,Shi, Guangrui,Sun, Weiqing,Xu, Jianbin,Yang, Yong,Luo, Yang,Fan, Baomin. "Nickel(0) catalyzed oxidation of organosilanes to disiloxanes by air as an oxidant". supporting information. p. 971 - 974. Retrieved 2019/03/07.
• 2、 -. "SILOXANE COMPOUND PRODUCTION METHOD AND GOLD CATALYST USED THEREIN". Paragraph 0054-0060; 0061; 0062. . Retrieved 2017/06/19.