1,3-DI-N-OCTYLTETRAMETHYLDISILOXANE

Base Information

• Chemical Name: 1,3-DI-N-OCTYLTETRAMETHYLDISILOXANE
• CAS No.: 18642-94-9
• Molecular Formula: C20H46OSi2
• Molecular Weight: 358.756
• Hs Code.: 2934999090
• Mol file: 18642-94-9.mol

Synonyms:1,1,3,3-Tetramethyl-1,3-dioctyldisiloxane;1,3-Dioctyl-1,1,3,3-tetramethyldisiloxane;

Chemical Property of 1,3-DI-N-OCTYLTETRAMETHYLDISILOXANE

Chemical Property:

• Vapor Pressure: 0.00012mmHg at 25°C
• Melting Point: -36°C
• Refractive Index: 1.4740
• Boiling Point: 345.8 °C at 760 mmHg
• Flash Point: 145.6 °C
• PSA: 9.23000
• Density: 0.821 g/cm³
• LogP: 8.13420

Purity/Quality:

98% ^*data from raw suppliers

1,1,3,3-Tetramethyl-1,3-dioctyldisiloxane 95+% ^*data from reagent suppliers

Safty Information:

• Statements: 36/37/38
• Safety Statements: 26-36/37/39

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1,3-DI-N-OCTYLTETRAMETHYLDISILOXANE

There total 4 articles about 1,3-DI-N-OCTYLTETRAMETHYLDISILOXANE 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: 92.8%

1,1,3,3-Tetramethyldisiloxane (3277-26-7) + oct-1-ene (111-66-0,25068-25-1) → 1,1,2,2-tetramethyl-1,2-di-n-octyldisiloxane (18642-94-9)

Guidance literature:

oct-1-ene; With Wilkinson's catalyst; for 0.0833333h;

1,1,3,3-Tetramethyldisiloxane; at 90 ℃; for 5h;

DOI:10.1016/j.jorganchem.2014.05.002

Reference yield:

1,1,3,3-Tetramethyldisiloxane (3277-26-7) + oct-1-ene (111-66-0,25068-25-1) → 1,1,2,2-tetramethyl-1,2-di-n-octyldisiloxane (18642-94-9) + 3-(n-octyl)-1,1,3,3-tetramethyldisiloxane (13827-44-6)

Guidance literature:

With Wilkinson's catalyst; In neat (no solvent); at 50 ℃; for 2h; Reagent/catalyst;

DOI:10.1016/j.jorganchem.2017.06.025

Reference yield:

dimethyl-n-octylchlorosilane (18162-84-0) → 1,1,2,2-tetramethyl-1,2-di-n-octyldisiloxane (18642-94-9)

Guidance literature:

DOI:10.1021/jo50011a024

upstream raw materials:

dimethyl-n-octylchlorosilane

octylmagnesium bromide

1,1,3,3-Tetramethyldisiloxane

oct-1-ene

Downstream raw materials:

tetradecamethylcycloheptasiloxane

Hexamethylcyclotrisiloxane

octamethylcyclotetrasiloxane

decamethylcyclopentasiloxane

Refernces

• 1、 Januszewski, Rafa?,Kownacki, Ireneusz,Maciejewski, Hieronim,Marciniec, Bogdan. "An efficient catalytic and solvent-free method for the synthesis of mono-organofunctionalized 1,1,3,3-tetramethyldisiloxane derivatives". . p. 263 - 268. Retrieved 2017/07/06.
• 2、 -. "Fixed-Bed Hydrosilylation Catalyst Complexes and Related Methods". Page/Page column 3. . Retrieved 2010/12/29.