1,1,1,3,3,5,5-Heptamethyl trisiloxane

Base Information

• Chemical Name: 1,1,1,3,3,5,5-Heptamethyl trisiloxane
• CAS No.: 2895-07-0
• Molecular Formula: C7H22O2Si3
• Molecular Weight: 222.507
• Hs Code.: 29349990
• Nikkaji Number: J306.818H
• Wikidata: Q81985624
• Mol file: 2895-07-0.mol

Synonyms:1,1,1,3,3,5,5-heptamethyl trisiloxane;1,1,1,3,3,5,5-Heptamethylpentanetrisiloxane

Chemical Property of 1,1,1,3,3,5,5-Heptamethyl trisiloxane

Chemical Property:

• Boiling Point: 163.8 °C at 760 mmHg
• Flash Point: 52.8 °C
• PSA: 18.46000
• Density: 0.82
• LogP: 2.53970
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 4
• Exact Mass: 222.09275954
• Heavy Atom Count: 12
• Complexity: 140

Purity/Quality:

98%,99%, ^*data from raw suppliers

1,1,1,3,3,5,5-HEPTAMETHYLTRISILOXANE 95.00% ^*data from reagent suppliers

Safty Information:

• Statements: 10-36/37/38
• Safety Statements: 16-33-36/37/39

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C[SiH](C)O[Si](C)(C)O[Si](C)(C)C

Technology Process of 1,1,1,3,3,5,5-Heptamethyl trisiloxane

There total 4 articles about 1,1,1,3,3,5,5-Heptamethyl trisiloxane 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: 80.0%

chloro-trimethyl-silane (75-77-4) + C7H21NO2Si2 → 1,1,1,3,3,5,5-heptamethyltrisiloxane (2895-07-0)

Guidance literature:

In benzene; at 20 ℃; Schlenk technique; Inert atmosphere;

DOI:10.1021/om500439p

Reference yield:

dimethyldimethoxysilan (1112-39-6) + 1,1,1,3,3-pentamethyl-1,3-disiloxane (1438-82-0) → 1,1,1,3,3,5,5-heptamethyltrisiloxane (2895-07-0)

Guidance literature:

With sulfuric acid;

Reference yield:

1,1,1,3,3-pentamethyl-1,3-disiloxane (1438-82-0) → Hexamethyldisiloxane (107-46-0) + 1,1,1,3,5,5,5-heptamethyltrisiloxan (1873-88-7) + octamethyltrisiloxabe (107-51-7) + decamethyltetrasiloxane (141-62-8) + 1,1,1,3,3,5,5-heptamethyltrisiloxane (2895-07-0) + M2DDH (77606-50-9)

Guidance literature:

With bis(triphenylphosphine)carbonyliridium(I) chloride; In benzene; at 70 ℃; for 116h; Product distribution; other siloxanes;

DOI:10.1016/S0022-328X(00)86840-0

upstream raw materials:

1,1,1,3,3-pentamethyl-1,3-disiloxane

chloro-trimethyl-silane

dimethyldimethoxysilan

Downstream raw materials:

C₂₁H₃₇BO₈Si₃

C₂₁H₃₇BO₈Si₃

C₁₅H₃₁BO₄Si₃

C₁₅H₃₁BO₄Si₃

Refernces

• 1、 Martinez, Jorge L.,Sharma, Hemant K.,Arias-Ugarte, Renzo,Pannell, Keith H.. "Platinum-catalyzed reduction of DMF by 1,1,3,3-tetramethyldisiloxane, HMeSi2OSiMe2H: New intermediates HSiMe 2OSiMe2OCH2NMe2 and HSiMe 2(OSiMe2)3OCH2 supporting information. p. 2964 - 2967. Retrieved 2014/07/08.