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Merck
CN

235733

1,1,3,3-Tetramethyldisiloxane

97%

Synonym(s):

1,3-dihydrotetramethyldisiloxane, sym-tetramethyldisiloxane, Bis(dimethylsilyl)ether, Bis(dimethylsilyl)oxide, Tetramethyldisiloxane

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About This Item

Linear Formula:
[(CH3)2SiH]2O
CAS Number:
3277-26-7
Molecular Weight:
134.32
UNSPSC Code:
12352103
NACRES:
NA.22
PubChem Substance ID:
24853998
EC Number:
221-906-4
Beilstein/REAXYS Number:
1733364
MDL number:
MFCD00008256

Key Documents

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InChI key

NVYQDQZEMGUESH-UHFFFAOYSA-N

InChI

1S/C4H14OSi2/c1-6(2)5-7(3)4/h6-7H,1-4H3

SMILES string

C[SiH](C)O[SiH](C)C

assay

97%

form

liquid

Quality Level

100

bp

70-71 °C (lit.)

density

0.76 g/mL at 25 °C (lit.)

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General description

1,1,3,3-Tetramethyldisiloxane is an inexpensive, nontoxic, and mild reducing agent. It is an attractive hydride source for hydrosilylation reactions, dehydrogenative silylations, and polymer production due to its electrophilic nature.

Application

1,1,3,3-Tetramethyldisiloxane can be used as:
  • A reactant to synthesize mono-functionalized siloxane derivatives via hydrosilylation reaction.
  • A reducing agent to synthesize alkyl halides from aldehydes.

Other Notes

A Practical Procedure for Reduction of Primary, Secondary and Tertiary Amides to Amines

pictograms

Flame
GHS02

signalword

Danger

hcodes

H225

Hazard Classifications

Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

14.0 °F - closed cup

flash_point_c

-9.99 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKDB1161
0000505466
0000505466
MKCZ0097
MKCX8914

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1, 1, 3, 3-Tetramethyldisiloxane
Deng J
Synlett, 22, 2102-2103 (2011)
1, 1, 3, 3-Tetramethyldisiloxane
Laval S, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis (2001)
Tetrahedron Letters, 25, 3123-3123 (1984)
An efficient catalytic and solvent-free method for the synthesis of mono-organofunctionalized 1, 1, 3, 3-tetramethyldisiloxane derivatives
Januszewski R, et al.
Journal of Organometallic Chemistry, 846, 263-268 (2017)

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