Disiloxane, methoxypentamethyl-

Base Information

• Chemical Name: Disiloxane, methoxypentamethyl-
• CAS No.: 18156-38-2
• Molecular Formula: C6H18 O2 Si2
• Molecular Weight: 178.379
• Hs Code.: 2934999090
• UNII: 5J3XQU4UBH
• DSSTox Substance ID: DTXSID0066325
• Nikkaji Number: J422.013G
• Wikidata: Q81992928
• Mol file: 18156-38-2.mol

Synonyms:Disiloxane, methoxypentamethyl-;Pentamethylmethoxydisiloxane;18156-38-2;5J3XQU4UBH;methoxypentamethyldisiloxane;methoxy-dimethyl-trimethylsilyloxysilane;Disiloxane, 1-methoxy-1,1,3,3,3-pentamethyl-;UNII-5J3XQU4UBH;SCHEMBL41514;C6H18O2Si2;DTXSID0066325;C6-H18-O2-Si2;[Methoxy(dimethyl)silyl]oxy-trimethylsilane;1-methoxy-1,1,3,3,3-pentamethyldisiloxane;METHOXY-DIMETHYL-TRIMETHYLSILYLOXY-SILANE;1-Methoxy-1,1,3,3,3-pentamethylpropanedisiloxane

Chemical Property of Disiloxane, methoxypentamethyl-

Chemical Property:

• Vapor Pressure: 49.6mmHg at 25°C
• Boiling Point: 96.5°Cat760mmHg
• Flash Point: 6.3°C
• PSA: 18.46000
• Density: 0.842g/cm³
• LogP: 2.18610
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 3
• Exact Mass: 178.08453288
• Heavy Atom Count: 10
• Complexity: 107

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CO[Si](C)(C)O[Si](C)(C)C
• Uses: 1-Methoxypentamethyldisiloxane is a useful intermediate in the preparation of organosilanones.

Technology Process of Disiloxane, methoxypentamethyl-

There total 5 articles about Disiloxane, methoxypentamethyl- 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:

5,5-Dimethyl-1,4-bis(tri-tert-butylsilyl)-1,2,3,4-tetraaza-5-sila-2-cyclopenten (106710-91-2) → 1-chloro-1,1,3,3,3-pentamethyldisiloxane (2943-62-6) + methoxypentamethyldisiloxane (18156-38-2) + tri-t-butylsilyl azide (69322-38-9) + 1,1,1-triethyl-3,3-dimethyldisiloxane (80907-11-5) + 2,2,4,4-tetramethy-1-tri-t-butylsilyl-3-oxa-1-aza-2,4-disilacyclobutan (114674-99-6) + 3,3,6,6,9,9,12,12-Octamethyl-1,2,4,5,7,8,10,11-octaoxa-3,6,9,12-tetrasila-cyclododecane

Guidance literature:

With dinitrogen monoxide; In diethyl ether; at 80 ℃; for 45h; Product distribution; Mechanism; other time, temp., also with Et₃SiH, Me₃SiCl, Me₃SiOMe, t1/2 = 8 h;

Reference yield:

bis-trimethylsilanyl peroxide (5796-98-5) → Trimethylsilanol (1066-40-6) + Hexamethyldisiloxane (107-46-0) + methoxypentamethyldisiloxane (18156-38-2)

Guidance literature:

In dibutyl ether; at 140 ℃; Product distribution; Rate constant; Thermodynamic data; other temperatures; other solvents; ΔE(activ.);

Reference yield:

1,1,1,2,2,2-hexamethyldisilane (1450-14-2) → Trimethylsilanol (1066-40-6) + ethane (74-84-0) + decamethyltetrasiloxane (141-62-8) + pentamethyldisiloxanol (56428-93-4) + methoxypentamethyldisiloxane (18156-38-2) + Ethyl-pentamethyl-disilan (15063-64-6)

Guidance literature:

With dinitrogen monoxide; under 90.007 - 727.6 Torr; Rate constant; Mechanism; Quantum yield; Ambient temperature; Irradiation; sensitizer: Hg(³P₁);

DOI:10.1021/j100268a034

upstream raw materials:

bis-trimethylsilanyl peroxide

5,5-Dimethyl-1,4-bis(tri-tert-butylsilyl)-1,2,3,4-tetraaza-5-sila-2-cyclopenten

Trimethylmethoxysilane

2,3-dimethyl-3-triphenylphosphonio-2-silabutane-2-thiolate

Downstream raw materials:

Hexamethyldisiloxane

octamethyltrisiloxabe

decamethyltetrasiloxane

dodecamethylpentasiloxane

Refernces

• 1、 Zemlyansky, N. N.,Borisova, I. V.,Shestakova, A. K.,Ustynyuk, Yu. A.,Chernyshev, E. A.. "A new method for generating organosilanones". . p. 2126 - 2127. Retrieved 2007/10/02.
• 2、 Hoffmeyer, H.,Potzinger, P.,Reimann, B.. "Reaction of O(3P) with Hexamethyldisilane". . p. 4829 - 4831. Retrieved 2007/10/02.