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3277-26-7 - 1,1,3,3-Tetramethyldisiloxane, 97% - B23697 - Alfa Aesar

B23697 1,1,3,3-Tetramethyldisiloxane, 97%

CAS Number
3277-26-7
Synonyms

Size Price ($) Quantity Availability
25g 29.07
100g 87.21
500g 314.40
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1,1,3,3-Tetramethyldisiloxane, 97%

MDL
MFCD00008256
EINECS
221-906-4

Chemical Properties

Formula
C4H14OSi2
Formula Weight
134.33
Melting point
-78°
Boiling Point
70-71°
Flash Point
-26°(-15°F)
Density
0.760
Refractive Index
1.3700
Sensitivity
Moisture Sensitive
Solubility
It reacts with water to produce dimethylsilanol, dimethylsilanediol and hydrogen gas.

Applications

1,1,3,3-Tetramethyldisiloxane is used as a monomer in the production of silicone polymers or silicone resins. It is used as a precursor to prepare other organosilicon compounds. It is also utilized in non-aqueous polymer preparation as well as a laboratory reagent.

Notes

Moisture sensitive. Keep away from sources of ignition. Store in cool place.

Literature References

Reducing agent:

In the presence of TMS chloride and either LiBr or NaI, aromatic aldehydes are reduced directly to benzyl halides: Tetrahedron Lett., 25, 1103 (1984).

With a Pd(0) catalyst, acetylenes are reduced to olefins (mainly cis): Tetrahedron Lett., 30, 4675 (1989).

Forms polymers via hydrosilylation of alkadienes and and alkynes.

In the presence of a catalytic amount of titanium isopropoxide, secondary and tertiary phosphine oxides can be reduced to the corresponding phosphines in high yield, avoiding pyrophoric reagents: Synlett, 1545 (2007).

Lykakis, I. N.; Psyllaki, A.; Stratakis, M. Oxidative Cycloaddition of 1,1,3,3-Tetramethyldisiloxane to Alkynes Catalyzed by Supported Gold Nanoparticles. J. Am. Chem. Soc. 2011, 133 (27), 10426-10429.

Stiubianu, G.; Cazacu, M.; Nicolescu, A.; Hamciuc, V.; Vlad, S. Silicone-modified cellulose. Crosslinking of the cellulose acetate with 1,1,3,3-tetramethyldisiloxane by Pt-catalyzed dehydrogenative coupling. J. Polym. Res. 2010, 17 (6), 837-845.

GHS Hazard and Precautionary Statements

Hazard Statements: H225

Highly flammable liquid and vapour.

Precautionary Statements: P210-P243-P403+P233

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Take precautionary measures against static discharge. Store in a well-ventilated place. Keep container tightly closed.

Other References

Beilstein
1733364
Hazard Class
3
Packing Group
II
Harmonized Tariff Code
2931.90
TSCA
Yes
RTECS
JN1000000

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